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ABSTRACT Water-sealed underground oil caverns are quite different from conventional underground projects because of the harsher conditions. For one of the largest such caverns in China, conventional grouting materials could [...]

ABSTRACT Reclaimed asphalt pavement (RAP), when used as a coarse aggregate, has been shown to reduce bulk concrete strength and modulus. Part I of this study quantifies and compares the [...]

ABSTRACT One-part geopolymer precursors are synthesized and preliminarily optimized by calcining bentonite with NaOH or [Na.sub.2]C[O.sub.3] to compare with the two-part ones. The ground powders of the former are hydrated [...]

ABSTRACT In carbon capture and storage (CCS) wells, the well cement is attacked by C[O.sub.2]-rich fluids, coupled with tensile stress. In this study, well cement samples were designed to be [...]

ABSTRACT The present study examines the effect of adding random, short coconut fibers to various cementitious composites on the mechanical properties, plastic cracking, and impact resistance of these composites. Fibers [...]

ABSTRACT A new monitoring approach was developed to enhance the analysis of performance tests and provide new sulfate resistance criteria. Even in the case of low degradation rates or non-swelling [...]

ABSTRACT This paper presents an evaluation on the viscoelastic behaviors of the microscopic phases present in the carbonated wollastonite (CaSi[O.sub.3]) matrix using nanoindentation test method. Wollastonite forms silica gel (Si[O.sub.2] [...]

ABSTRACT Strengthening of reinforced concrete (RC) structures using the near-surface mounted (NSM) fibre reinforced polymer (FRP) method is becoming an attractive technique for upgrading the existing structural elements. The exposure [...]

ABSTRACT The abrasion erosion characteristics of concrete made from moderate heat Portland cement, fly ash, and silica fume were investigated via sandblasting test. In this study, the influences of fly [...]

ABSTRACT The cement industry is a major industrial producer of greenhouse gases, responsible for 5-8% of manmade C[O.sub.2] emissions. The carbonation reaction, which occurs between C[O.sub.2] and the corresponding reactive [...]

ABSTRACT The environmental footprint for Portland cement production contributes to significant carbon dioxide emissions, particularly in the civil engineering industry. Alternative low-carbon binders to Portland cement have been increasingly sought [...]

ABSTRACT In this work, the chloride ingress profiles and binding capacity of mortar subjected to cyclic drying-wetting salt-fog atmospheric environments were experimentally investigated. In particular, the free and total chloride [...]

ABSTRACT Nowadays concerns about the future availability of fly ash have arisen due to the implantation of pollution control devices in coal combustion plants and increased blending of powder river [...]

ABSTRACT Porous cement paste prepared using ordinary Portland cement (OPC), pozzolanic additives-metakaolin-based waste (MBW) or milled sand (MS), chemical admixtures--air entraining (AEA) and plasticizing (PA), and water from local supply [...]

ABSTRACT The utilization of municipal solid waste (MSW) incineration bottom ash (IBA) in the infrastructure construction is a double-win solution to feed the fueling demand for building stones and binding [...]

ABSTRACT Recent investigations show that graphene nanoplatelets (GNPs) and graphene oxide nanoplatelets (GONPs) are promising nano-sized additives to enhance the mechanical property and smartness of cementitious materials. To further delineate [...]

ABSTRACT Worldwide use of ordinary cement concrete (OCC) faced with permeability problems causing significantly negative influence on construction and infrastructure, shortening the lifespan and increasing the related maintenance fee. To [...]

ABSTRACT Penetration of chloride ions into concrete is a complex topic. These ions together with other dissolved chemical species can penetrate into cementitious materials by convection through capillary pores or [...]

ABSTRACT This paper investigates the bond-slip behaviour of steel reinforcement embedded in engineered cementitious composites (ECC), a ductile concrete exhibiting tensile strain hardening performance. Two series of experimental tests were [...]

ABSTRACT To develop a neutral binder for vegetation concrete, various cementitious materials based on alphacalcium sulfate hemihydrate (α-CH) were compositionally examined as follows: 25% and 50% of the α-CH content [...]

ABSTRACT This paper is aiming at evaluating the possibility of polycarboxylate-based material used as grinding aid for cement production and studying its influence on cement properties under laboratory condition. Results [...]

ABSTRACT Ultrasonic wave methods have been widely used to monitor the hydration process of cementitious materials. However, the conventional ultrasonic wave methods require a coupling agent and pressure or a [...]

ABSTRACT The use of jet grouting technique for ground improvement has become very popular approach for civil engineering projects. Despite the availability of large number research related to development of [...]

ABSTRACT This study reports the influence of inclusion stiffness and its distribution on the stress distributions in the microstructural phases of different cementitious mortars using microstructure-guided finite element simulations. Randomly [...]

ABSTRACT The utilisation of nano particles to enhance concrete can be seen in its densification and refining. In this study, nano metakaolined UHPC mixes were used as an additive range [...]

ABSTRACT Discovering new cement based materials characterised with self-healing capability is essential for sustainable infrastructure with longer service life. Engineered cementitious composite (ECC) with high potential of micro-crack healing can [...]

ABSTRACT Ultra-high performance concrete (UHPC) not only presents ultra-high compressive strength but also exhibits ultra-high durability, due to its extremely dense structure and consequently highly reduced porosity. However, high dosages [...]

ABSTRACT During the last years several studies of construction materials with incorporation of encapsulated phase change material (PCM) have been published. However, the utilization of non-encapsulated PCM is one of [...]

ABSTRACT Fatty acids are increasingly being evaluated as phase change materials to enhance thermal regulation in buildings and as hydrophobic admixtures to reduce water ingress into concrete. This paper describes [...]

ABSTRACT Iron slag (I-sand) generated as a by-product in iron and steel industries, is usually disposed by delivering to landfills. Effective utilization of iron slag in reinforced concrete could be [...]

ABSTRACT Different volumes of liquid foam and constant water-cement ratio (0.55) were used to prepare a set of foam concretes via pre-formed foaming. The liquid foams consisting of protein foaming [...]

ABSTRACT The workability and mechanical properties of cement asphalt emulsion (CA) mortar are unstable due to the complex interaction between cement and asphalt emulsion. To reveal the interaction between cement [...]

ABSTRACT This study examines the electrical properties of cement mortar using rice husk-derived graphenes (GRHs). It investigates enhanced types of graphene-like materials synthesized by extracting rice husk from agricultural waste. [...]

ABSTRACT In this paper, water seepage of cement asphalt emulsified mortar (CA mortar) was studied in a small-scale track model, including the seepage rate, the chemical composition of the seeping [...]

ABSTRACT The objective of this work was to optimize nano-silica's addition in cement mortars using different mixing procedures. Nano-silica was either dispersed in water using sonication or directly added into [...]

ABSTRACT This paper describes an investigation of the influence of steel fiber (abbreviated as SF) on the dynamic compressive behavior of hybrid fiber ultra high toughness cementitious composites (UHTCC) at [...]

ABSTRACT In this paper, carbon fibers with hydrophilic surface modification were added into cement mortar through ultrasonic treatment. The mechanical and electrical properties of carbon fiber filled cement mortar were [...]

ABSTRACT This paper summarizes the experimental and analytical investigation on performance of polymer cement mortar (PCM)-concrete interfaces and PCM overlaid reinforced concrete (RC) beams at temperature level of 20, 40 [...]

ABSTRACT This study analyses the impact of substituting limestone fillers for cement on the rheological behaviour and drying shrinkage of microconcretes that are used for repair coatings. Three microconcretes were [...]

ABSTRACT The influence of surfactants on chloride binding in cement paste has been investigated in this paper. Three surfactants, such as TEA-Lauryl sulfate (TEALS), sodium dodecyl benzene sulfonate (SDBS) and [...]

ABSTRACT The sulfate resistance of moderate [C.sub.3]A Portland and Portland limestone cements (respectively PC and PLC) and their mixes with fly ash (FA) was monitored according to five performance indicators: [...]

ABSTRACT This paper focuses on the early age evolution of consistency and rheological properties of fresh bitumen emulsion-cement (BEC) pastes. The tested BEC pastes were fabricated using a Portland limestone [...]

ABSTRACT Composite slab/flooring system known as fast track construction with profiled steel deck and regular concrete topping is very popular. This paper presents the development and performance evaluation of a [...]

ABSTRACT The effect of triisopropanol amine (TIPA), sodium chloride (NaCl) and limestone (LS) on compressive strength and hydration of Portland cement were studied using Design of Experiment (DoE) and isothermal [...]

ABSTRACT The use of additives to improve the quality of cement grouts and their effects on strength, durability and resistance to chemical erosion of grouted soil or rock mass is [...]

ABSTRACT Crumb rubber concrete (CRC) has some known shortcomings in mechanical performance compared to conventional concrete, particularly with respect to compressive strength. Many previous researchers have tried to overcome the [...]

ABSTRACT When cement-based materials with a low water-binder ratio are exposed to water, the internal unhydrated cementitious components undergo rehydration. Rehydration tests of paste samples with a low water-binder ratio [...]

ABSTRACT Failure and deterioration of structural interventions on masonry buildings demonstrated the need for compatible repairs. Mechanical, chemical, transport properties and density of Portland Cement concrete are poorly compatible with [...]

ABSTRACT This study investigated the effect of the physicochemical properties of fly ash, including the particle sizes and chemical composition of the amorphous phase, on the compressive strength of high-volume [...]