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Titanium alloy with high corrosion resistance, high strength-to-density ratio, and excellent biocompatibility has a wide range of applications in the field of biomedical implants. Polishing experiments of titanium alloy with a small size and complex shapes were investigated using an ultrasonic assisted magnetorheological finishing (UMRF) device excited by a three-pole magnetic field generator. The models of the normal force and the shear force were first proposed based on the Preston equation to analyze the mechanism of material removal in the UMRF process. Subsequently, the single-factor experiments using titanium alloy nuts (M3) and the MR polishing fluid with silicon carbide abrasives were carried out. Furthermore, to improve the surface roughness and the change rate of surface roughness of nuts, orthogonal tests with a standard L9(34) orthogonal array were designed and performed based on the optimized process parameters obtained from the single-factor experiment. The results indicated the effect on surface roughness and change rate of surface roughness as applied current > roller speed > ultrasonic amplitude > spindle speed and applied current > roller speed > spindle speed > ultrasonic amplitude, respectively. Moreover, the surface roughness was improved from an initial 1.247 μm to a final 0.104 μm after the polishing for 80 min under these optimal process parameters. [ABSTRACT FROM AUTHOR]

Titanium alloy with high corrosion resistance, high strength-to-density ratio, and excellent biocompatibility has a wide range of applications in the field of biomedical implants. Polishing experiments of titanium alloy with a small size and complex shapes were investigated using an ultrasonic assisted magnetorheological finishing (UMRF) device excited by a three-pole magnetic field generator. The models of the normal force and the shear force were first proposed based on the Preston equation to analyze the mechanism of material removal in the UMRF process. Subsequently, the single-factor experiments using titanium alloy nuts (M3) and the MR polishing fluid with silicon carbide abrasives were carried out. Furthermore, to improve the surface roughness and the change rate of surface roughness of nuts, orthogonal tests with a standard L9(34) orthogonal array were designed and performed based on the optimized process parameters obtained from the single-factor experiment. The results indicated the effect on surface roughness and change rate of surface roughness as applied current > roller speed > ultrasonic amplitude > spindle speed and applied current > roller speed > spindle speed > ultrasonic amplitude, respectively. Moreover, the surface roughness was improved from an initial 1.247 μm to a final 0.104 μm after the polishing for 80 min under these optimal process parameters. [ABSTRACT FROM AUTHOR]

The climbing of trees to pick pinecones is a high-risk exercise. In this study, a mechanical gripper jaw was designed. Frictional characteristics between the pinecones and the mechanical gripper jaw during pinecone picking under different conditions were investigated using a workbench simulation, homemade inclined friction meter, and mass tester. Three-level orthogonal and one-factor tests were conducted. The relationship between the water content and friction properties and between the water content and hardness were investigated, and conclusions were drawn on how water content affected friction properties by influencing hardness. The results showed that the contact material greatly affected the friction properties. The pinecone water content was maintained between 24% and 28% to ensure that the coefficient of friction was maximized and that the pinecones were sufficiently hard to dislodge. Additionally, a prototype machine was used to perform pinecone-gripping experiments to validate the experimental and simulation results. Consequently, the results of this study provide a useful reference for the structural design of pinecone picking robots and the picking reason. [ABSTRACT FROM AUTHOR]

In response to the problems of low efficiency and difficulty of pruning operations in modern dwarf dense orchards, an adjustable position saw blade pruning machine was designed, mainly consisting of a pruning device, a regulating device and a hydraulic system. Through the mechanical and modal analysis of the circular saw blade, the limit speed of the circular saw blade was derived. A finite element model of the sawing process was established, and a single-factor simulation analysis was conducted for three important parameters: feed rate, circular saw blade speed and branch diameter, and a three-factor, three-level quadratic regression orthogonal test was designed to derive the best matching sawing parameters, which was verified in field tests. The test results showed that the average passing rate was 92.8% at the feed rate of 4 km/h under the circular saw blade speed of 2800 rpm, which was higher than 88.8% at 3 km/h and 88.9% at 5 km/h. The optimum sawing parameters were: the circular saw blade speed of 2800 rpm and feed rate of 4 km/h, which were consistent with the simulation results, and the passing rate of the cut was high at this time, meeting the technical requirements of orchard pruning. [ABSTRACT FROM AUTHOR]

Previous research(Yu et al. [25]) found that choline chloride-urea DES pretreatment could dissolve the hemicelluloses of ramie fibers, while choline chloride-oxalic acid dehydrate DES pretreatment could significantly enhance the nanofibrillation of the recycled fibers. Given the limited literature on DES degumming for flax roving, the effect of treatment temperature, treatment time, liquor ratio, and DES concentration on the DES pretreatment was investigated using orthogonal tests. Keywords: Flax roving; deep eutectic solvent; microbial degumming; Bacillus subtilis; orthogonal tests; gum; ; ; ; ; ; EN Flax roving deep eutectic solvent microbial degumming Bacillus subtilis orthogonal tests gum ZH 9410 9419 10 11/21/22 20221220 NES 221220 Introduction Flax, a traditional cellulosic fiber plant, is widely used in the textile, medical, and composite industries, and an important commercial crop in Europe(Pandey et al. [12]). The flax fibers obtained after DES pretreatment and microbial treatment were characterized by scanning electron microscopy (SEM), Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TGA), and X-ray diffractometry (XRD). [Extracted from the article]

In this study, the effects of coal blending ratio, pyrolysis temperature, pyrolysis atmosphere and coal particle size on the quality of pyrolyzed char were investigated via a combination of orthogonal experimental design and grey relational analysis. Coal-XG and Coal-LL were pyrolyzed under various conditions to produce chars which were characterized to ascertain their properties such as chemical structure and reactivity. The results indicated that the pyrolysis temperature has the most significant impact on the quality of the char, followed by the pyrolysis atmosphere, coal blending ratio and coal particle size. The increase in pyrolysis temperature not only diminished char yield but also accelerated the consumption of oxygen-containing functional groups and the polycondensation of small aromatic ring structures throughout the reaction process. This led to a reduction in the reactivity of pyrolyzed char and the establishment of a more ordered structure. Meanwhile, the involvement of CO 2 and H 2 O prevented the condensation of small aromatic rings and fostered the generation of additional oxygen-containing functional groups, which resulted in lower yield and higher reactivity of the char under these two atmospheres. Through systematic analysis, only the Raman characteristic parameter I (Gr+VL+Vr) /I D exhibited a strong positive linear correlation with char reactivity, making it a reliable indicator for characterizing the reactivity of char. • The orthogonal design was used to study four response factors. • GRA was used to find optimal conditions and impact ranking of different factors. • Linear regression was applied to relate Raman/FTIR parameters to reactivity. • Blend experiments were conducted with two coking coals. [ABSTRACT FROM AUTHOR]

The synthetic jet piezoelectric air pump is a potential miniature device for electronic cooling. In order to improve the performance of the device, a small-sized synthetic jet piezoelectric air pump is proposed in this work, which is mainly characterized by petal-shaped inlet channels. First, the structure and working principle of the piezoelectric vibrator and the proposed pump are analyzed. Then, three synthetic jet piezoelectric air pumps with different inlet channels are compared. These inlets are the direct channels, the diffuser/nozzle channels, and the petal-shaped channels, respectively. Furthermore, the performance of the synthetic jet piezoelectric air pump with the petal-shaped inlet channels is optimized by orthogonal tests. Finally, the simulation was used to investigate the heat dissipation capability of the synthetic jet piezoelectric pump. The experimental results show that among the three inlet channels, the petal-shaped channel can greatly improve the performance of the pump. The unoptimized pump with petal-shaped channels has a maximum flow rate of 1.8929 L/min at 100 V, 3.9 kHz. Additionally, the optimized pump with petal-shaped channels reaches a maximum flow rate of 3.0088 L/min at 100 V, 3.7 kHz, which is 58.95% higher than the unoptimized one. The proposed synthetic jet piezoelectric air pump greatly improves the output performance and has the advantages of simple structure, low cost, and easy integration. The convective heat transfer coefficient of the synthetic jet piezoelectric pump is 28.8 W / (m 2 · ° C) , which can prove that the device has a better heat dissipation capability. [ABSTRACT FROM AUTHOR]

DEFORM-3D software was used to simulate the forging process with liquid core. Three orthogonal tests were designed to obtain the results with solid-phase thickness, reduction amount and pressing speed as three factors. The significant factors were acquired by the range analysis which affected the values of the equivalent strain and the equivalent stress in the solid-phase region, the solid–liquid two-phase region and the liquid-phase region. We mastered the deformation law during the forging process with liquid core. Four groups of the physical models of the multilayer gradient were also established under laboratory conditions. Fifty-three sets of forging parameters data were recorded including the solid-phase thickness, the reduction amount, the pressing speed and the forming pressure in each group. We constructed the relationship equation between the forming pressure and the other three factors in Origin. The equation provided a theoretical basis for selecting the press tonnage during the forging process with liquid core. [ABSTRACT FROM AUTHOR]

Taking soil layer 7 undisturbed fine sand layer in Shanghai as the test object, using GDS triaxial test apparatus, we carried out the orthogonal tests of 4 factors and 3 levels repeated pumping and recharging to explore the deformation characteristics of fine sand in dewatering. The strain and stress characteristics of single sample were discussed under the effect of dewatering and the orthogonal analysis of the nine samples were also conducted. It was revealed that axis strain of fine sand includes elastics, main consolidation and second consolidation, while the radius strain shows the up and down and increases constantly as the repeated pumping and recharging. And the water level drawdown has the greatest effect on the deformation characteristics of fine sand, and the intermittent time and recharging speed are moderate and nearly the same, and the precipitation speed is the least significant. The deformation mechanism of fine sand is closely related to its single grain microstructure. Finally the validity analysis of the orthogonal test shows the consistency and effectiveness of the test results. The research conclusion can provide technical guidance and theoretical basis for controlling ground settlement induced by dewatering in deep foundation pit engineering. [ABSTRACT FROM AUTHOR]

The present work reported tests of a new solvent 30 wt% MEA-Methanol compared to aqueous 30 wt% MEA solvent in a pilot-plant test bed, which comprises the complete absorption/desorption. The two solvents were studied in the same way in the test bed and detailed results were reported for both solvents. The measurements were carried out at a constant CO 2 removal rate of 90% by an adjustment of the regeneration energy in the desorber for systematically varied L/G ratios, flue gas flow rate and absorber height. Results from these studies indicated that MEA-Methanol solvent had a faster CO 2 absorption rate and a lower regeneration energy consumption compared to aqueous MEA solvent. Regeneration heat duty (Q reg ) of MEA-Methanol solvent at optimum operating conditions was obviously lower than that of aqueous MEA solvent (3.22 MJ/kg CO 2 and 4.04 MJ/kg CO 2 , respectively), which showed that MEA-Methanol had a potential to replace aqueous MEA solvent in industrial CO 2 pilot plant. [ABSTRACT FROM AUTHOR]

Enzymatic hydrolysate of poplar wood was used in this study to produce biobutanol by a mutant M-18. Plackett-Burman and Box-Behnken designs were adopted in order to screen crucial factors from various nutrient factors affecting butanol production. These factors included reducing sugar content of hydrolysate, MgSO4•7H2O, yeast extract, K2HPO4, FeSO4•7H2O, CaCO3, and ammonium sulfate. The results demonstrated that a reduction in sugar content, K2HPO4, and CaCO3 were the most critical factors. Yeast extract was also found to have a significant effect on biobutanol production by performing an analysis of variance (ANOVA). Optimal variables were 44.53 g/L of reducing sugar concentration, 1.36 g/L of K2HPO4, and 4.65 g/L of CaCO3 according to the Box-Behnken design. A model was established and used to predict a maximum biobutanol production of 7.59 g/L. Optimal conditions of fermentation were determined by orthogonal tests. Three distinct factors with important effects on biobutanol production were explored. The pH was identified as having the most significant effect on biobutanol biosynthesis. Optimized fermentation conditions for biobutanol production were determined at an initial pH of 6.5, temperature 36 °C, and inoculum quantity 9%. Under these conditions, a maximum biobutanol production of 8.41±0.20 g/L was achieved in verification experiments in a 3 L fermentation tank. [ABSTRACT FROM AUTHOR]

Lightweight, hybrid parts are extensively used in the manufacturing of modern aerospace or automobile structures like fiber metal laminates (FMLs) to replace the monolithic metallic parts. Presently, smaller and complex-shaped FML parts are made by applying the stamp-forming techniques. However, due to limited strain of the composite fibers, such techniques are unfit for forming complex profile laminated parts. This study focuses on the use of hydro-mechanical deep drawing (HMDD) for the three layers simultaneous forming of the metallic blanks to fabricate a hemispherical structure which will then be used to make a FML part. Orthogonal test strategy is formulated to investigate the influence of variables such as cavity/pre-bulging pressures, pre-bulging height, and die-binder gap to optimize the forming conditions. FE-based experimental study is done to research the thickness distribution and spring back of the formed multilayer structure. Results show that the research is sufficient in predicting these attributes and can provide a basis to understand the fundamental phenomenon for three-layered, simultaneously formed structures. Hybrid parts fabricated by using multilayer forming can expand the application areas of FMLs. [ABSTRACT FROM AUTHOR]

• Material removal modeling of cylindrical polishing considering multi-scale contact. • Surface roughness modeling by Hertz contact, G-W model and single grain cutting. • Taguchi orthogonal experiments, ANOVA and level average response analysis. • Discussion of contact area, contact gap, single grain's cutting depth. • Investigation on influences of loading force and grain size at multi-scale. In this paper, the material removal and the surface roughness in the cylindrical polishing with a soft pad and free abrasives are investigated theoretically and experimentally. Existing our studies have suggested that there is different contact deformation at dimension scales of millimeter, micrometer and nanometer. On that basis, the material removal model is proposed by integrating the contact at different scales in accordance with the Hertz contact, the Greenwood and Williamson's model (G-W model) of rough contact and the single grain's cutting depth. Furthermore, a model of surface roughness is built based on the idea that more materials are removed at the peak on the workpiece's surface, whereas few materials are removed at the valley. The polishing experiments and simulation of cylindrical AISI 52100 steel using the polyurethane polishing pad and the free abrasives of aluminum oxide powder were performed through the Taguchi orthogonal tests, which indicated that the simulation results were well consistent with the experimental results. Under the optimal conditions, the material removal rate (MRR) of 0.40 μm/min was achieved, and the surface roughness R a was reduced from 104.90 to 20.22 nm after the polishing for 12 min. The contributions of the loading force, the abrasives concentration and the grain size on the MRR and the surface roughness are investigated in accordance with the variance and the level average response, and their reasons are discussed at different scales. It is revealed that the influences of loading force and grain size are significantly different at multi-scale. Furthermore, the parameters related to the contact (e.g., nominal contact area, average contact gap and single grain's cutting depth) under different conditions are studied. [Display omitted] [ABSTRACT FROM AUTHOR]

Phosphomolybdic acid is a kind of novel oxidant. The basic nitrogen compounds (BNC) in diesel was removed by phosphomolybdic acid/hydrogen peroxide as oxidant, alcohol was used as extractant to extract oxidation products from diesel. The effect of factors on removing of BNC was reviewed systematically. On the basis of single factor investigations, orthogonal experiments were done to optimize the denitrification process. The result showed that the optimum process conditions is that usage of phosphomolybdic acid is 0.020 g, volume of hydrogen peroxide is 2.5 mL, reaction temperature is 318 K, and reaction time is 35 min. The BNC in diesel is reduced from 85.79 to 21.28 μg/g, and the denitrification rate reaches 75.2% under the optimum condition. [ABSTRACT FROM AUTHOR]

In this paper, TiO 2 -based geopolymer microspheres (TiO 2 @GMs) were prepared by dispersion-suspension-solidification technique using water glass activated metakaolin-based geopolymer slurry as a binder. The effects of different factors on the sphericity and particle size of TiO 2 @GMs were investigated, and the order of importance was found to be TiO 2 dosage > water volume > water glass modulus > rotation speed. Secondly, in the Fenton system under UV light irradiation, TiO 2 @GMs exhibited excellent performance in the degradation of tetracycline hydrochloride (TC). At a TC concentration of 20 mg/L, liquid-to-solid ratio of 0.3 g/L, H 2 O 2 (30 wt%) of 10 mM, and pH = 4.47, 98.6% TC was degraded by TiO 2 @GMs within 30 min TiO 2 @GMs can be easily separated from the reaction product and showed excellent recycling performance, with a degradation efficiency of 90.6% after five success reuses. Finally, a plausible photocatalytic degradation mechanism of TiO 2 @GMs for TC was discussed. This newly designed TiO 2 @GMs composite can be deemed as an alternative material for the degradation of TC and other similar antibiotic on large scale. [Display omitted] • Preparation of different TiO 2 @GMs by suspension dispersion solidification method. • The degradation process of TC by TiO 2 @GMs includes adsorption and photocatalytic. • The degradation rate of TC by TiO 2 @GMs is better than that of similar catalysts. • TiO 2 @GMs have excellent recycling and rapid settling properties. • The photocatalytic degradation mechanism of TC by TiO 2 @GMs was explained. [ABSTRACT FROM AUTHOR]

The structural bent-angle drilling tool is a new type of directional drilling tool developed independently, in order to improve its build-up rate and better play its trajectory capacity, in order to successfully achieve directional drilling. To this end, this paper establishes a mechanical model of structural bent-angle drilling tools by using the longitudinal and transverse bending method of BHA continuous beams, conducts a study on the influencing factors of their skewing ability, and grasps the influence law of drilling tool structure on their skewing ability. In addition, in order to study the build-up rate of structural bent-angle drilling tools under the action of multiple factors, the drilling tool structure is optimized based on orthogonal tests. The results show that the lateral force of the bit decreases with the increase of the curvature of the well body and the decrease of the structure bending angle, the bit pressure and the diameter of the near bit holder. The build-up rate increases with the increase of the structure bending angle, the bit pressure, the diameter of the near bit holder and the distance from the bit to the near bit holder. The structure bending angle is the main factor affecting the build-up rate of the structure bending angle drilling tool, and the build-up rate of the optimized structure (structural bend angle (γ) = 0.9 ° , bit pressure (P B) = 6 t , near drill bit holder diameter (D 1) = 0.215 m , distance from drill bit to near drill bit holder (L 1) = 0.6 m) is 8.3939 ° / 30 m , which is 65.5% higher than the original structure (γ = 0.5 ° ; P B = 3 t ; D 1 = 0.212 m ; L 1 = 0.6137 m)(2.8949 ° / 30 m). The research results can lay the theoretical foundation for improving the build-up rate of structural bent angle drilling tools. • Mechanical modeling of structural bent-angle drilling tools using the longitudinal and transverse bending method. • The factors affecting the ability of structural drilling tool are studied. • The law of influence on skew-making ability of structure bent-angle drilling tool is mastered. • Optimization of the structure of structural bent-angle drilling tools based on orthogonal tests. [ABSTRACT FROM AUTHOR]

Supercritical fluid extraction (SFE) coupled with high-speed counter-current chromatography (HSCCC) was successfully used for the extraction and on-line isolation of the anthocyanidins from the petals of Chaenomeles sinensi s in two stages. The SFE parameters were optimized by an orthogonal test, and the solvent systems of SFE and HSCCC were calculated and optimized with the help of a multiexponential function model. In the first stage, the lower phase of the solvent system of n-butanol/ tert-butyl methyl ether/acetonitrile/0.1% aqueous TFA (0.715:1.0:0.134:1.592, v/v/v/v) was used as both the SFE modifier and the HSCCC stationary phase, after extraction, the extractants were pumped into HSCCC column, and then eluted with the corresponding upper phase to isolate the moderately hydrophobic compounds. In the second stage, the upper phase of the solvent system of n-butanol/ethyl acetate/acetonitrile/0.1% aqueous TFA (1.348:1.0:0.605:2.156, v/v/v/v) was used as both the SFE modifier and the HSCCC stationary phase, followed by elution with the corresponding lower phase to separate the hydrophobic compounds. With the help of two-stage SFE/HSCCC, six compounds including delphinidin-3- O-glucoside (Dp3G), cyanidin-3- O-glucoside (Cy3G), peonidin-3- O-glucoside (Pn3G), delphinidin (Dp), peonidin (Pn), and malvidin (Mv) were successfully separated within 300 min. The targeted compounds were identified by UV spectrophotometry, MS, and NMR spectroscopy. This research has opened up great prospects for the industrial application of SFE-HSCCC for the automatic extraction and separation of unstable compounds. [ABSTRACT FROM AUTHOR]

The naphthenic acid in diesel oil was removed by sodium carbonate as deacidification agent under strengthening of supersonic. The influence of affect factors about treating conditions on the acid removal of diesel oil was investigated, such as ultrasonic frequency, volume ratio of sodium carbonate solution to oil (VRSO), ultrasonic work function, and ultrasonic strengthening time. Orthogonal tests were done to confirm the optimum process condition. The results showed that the optimum condition was that ultrasonic frequency was 28 KHz, VRSO was 0.30, ultrasonic work function was 350 W, and ultrasonic strengthening time was 6 min. Under this optimum condition, acidity of diesel oil was reduced to 4.88 mgKOH/100 mL from 135.52 mgKOH/100 mL, and deacidification rate of naphthenic acid reached 96.4%. [ABSTRACT FROM PUBLISHER]

Sodium carbonate as deacidification agent was used to remove naphthenic acid from diesel oil. The influence of affect factors about treating conditions on the acid removal of diesel oil was investigated, such as volume ratio of deacidification agent-to-oil (VRDO), reaction temperature, stirring time, and resting time. Orthogonal tests were done to conform the optimum process condition. The results showed that the optimum condition is that VRDO was 0.40, reaction temperature was 330 K, stirring time was 6 min, and resting time was 35 min. Under the optimum condition, acidity of diesel oil was reduced to 5.15 mgKOH/100 mL from 135.52 mgKOH/100 mL, and if deacidification rate of naphthenic acid reached 96.8%, diesel oil recovery could reach 92.6%. The quality index of diesel met the national standard. [ABSTRACT FROM PUBLISHER]

Removal of the basic nitrogen compounds from diesel oil by using ferric chloride as complexing agent was studied. The influence of affect factors on treating conditions was investigated, and orthogonal tests were done to conform the optimum process condition. The results showed that the optimum condition was that of the volume ratio of complexing agent to oil was 1.0, stirring time was 25 min, resting time was 40 min, and reaction temperature was 330 K. Under this optimum condition, the basic nitrogen compounds in diesel oil were reduced from 85.79 μg/g to 3.52 μg/g, and removal rate reached 95.9%. [ABSTRACT FROM AUTHOR]

Abstract: Collinear load instead of traditional waveguide load is advanced for Linac miniaturization. In order to develop high power collinear load, an efficient microwave-absorbing material of FeSiAl is employed, meanwhile responding simulation design method is proposed in this paper. CST simulations demonstrate that the operation frequency of the cavity falls linearly with a rate of about −14.74kHz/mm3 to the FeSiAl coating volume, while the quality factor appears inversely proportional and can drop to about 25. Cavity dimensions were adjusted to compensate the frequency shift from 2856MHz. Orthogonal tests indicate that the real part of the permeability of FeSiAl notably affect the operation frequency of load cavities, while the imaginary part of the permeability acts on the attenuation much. Eventually based on uniform power absorption principle, a six-cavity collinear load was designed with one-way attenuation of −29.47dB, and the detail parameters are presented. [Copyright &y& Elsevier]

In this article a series of non-proportional orthogonal tests with continuous strain paths are presented. Mild steel was investigated on a biaxial test device that was specifically developed to examine strain path sensitivity. It is shown that a gradual strain path change shows a gradual increase in stress. However, experiments with increasing sharpness in the strain path change show an overshoot in stress which is a typical feature of stress–strain curves from discontinuous strain path changes. [Copyright &y& Elsevier]

This paper describes an experimental investigation into the compaction characteristics of cement-stabilized macadam base materials (CSMBM) in a saline soil area. Through the field tests, the main causes of arch expansion in an existing road were analyzed. Based on this, the compaction tests and microscopic tests were designed to analyze the impacts of temperature, sodium sulfate content and cement content on the compaction characteristics of CSMBM. Then, the orthogonal test was designed to analyze the effects of the degree of the temperature, the cement content, and the sodium sulfate content on the compaction results of the CSMBM. Feld tests results show that the temperature, sodium sulfate content and cement content may be the main causes of arch expansion. The compaction tests show that with the temperature increasing, the optimal water content (OWC) decreases, but the maximum dry density (MDD) increases; with the sodium sulfate content increasing, the OWC increases, but the MDD decreases; with the cement content increasing, both MDD and OWC increase. The microscopic tests show that the increase of temperature and cement content is beneficial to the compactness between cementitious materials and aggregates, while the increase of sodium sulfate content makes the whole structure of cementitious materials and aggregates increasingly rough. The orthogonal test shows that the temperature has the greatest influence on the MMD, and the sodium sulfate content has the greatest influence on the OWC. Thus, in a sulfate saline soil area, the construction temperature, the sodium sulfate content and the cement content should be controlled to ensure the compaction quality of CSMBM. [ABSTRACT FROM AUTHOR]