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ABSTRACT The artificially intensified sewage was prepared to simulate and accelerate the microbial corrosion of concrete in sewer, and the changes in weight of mortar with and without biofilm in [...]

ABSTRACT A novel strategy for improving the immobilization of heavy metals during the use of electroplating sludge in the production of clay bricks, was proposed by the addition of waste [...]

ABSTRACT This paper presents an experimental work of a four-years study on the corrosion resistance of concrete made of sulfate contaminated aggregates. The study involved both carbonation and chloride induced [...]

ABSTRACT Contamination of oil well cement slurries with mineral oil-based drilling fluids (MOBM) is considered to be a great challenge for cementing security and quality. In this paper, a surfactant [...]

ABSTRACT This paper investigates the influence of a plasticizing admixture on the pore structure refinement of alkali-activated concrete and paste mixtures and the consequently enhanced performance. Alkali-activated fly ash-slag concrete [...]

ABSTRACT The aim of this paper was to investigate the effect of natural carbonation on the pore structure, and elastic modulus ([E.sub.m]) of alkali-activated fly ash (FA) and ground granulated [...]

ABSTRACT Porous asphalt pavement material is a special asphalt mixture with a void content of 18% or more. The porosity is essential to the ecological functions of porous asphalt pavement, [...]

ABSTRACT The present study evaluates the engineering properties and durability of an eco-friendly mortar that was produced using an innovative cement-free SRF binder. Samples of the binder, which incorporated ground [...]

ABSTRACT This paper reports the influence of hot weather conditions and subsequent curing requirements on the strength and durability of multi-cementitious concrete. Five curing schemes were considered using persistent moist [...]

ABSTRACT Low water/cement ratio in cement-based materials can be obtained with the incorporation of the superplasticizer. However, another problem can be found: the hydration degree of the cement minerals is [...]

ABSTRACT The distinct spalling performances of reactive powder concrete (RPC) specimens with various silica fume (SF) contents exposed to high temperatures were observed via high-resolution photography. The RPC microstructures and [...]

ABSTRACT In this study the effect of vacuum mixing and heat treatment on the compressive strength and microstructure of reactive powder concrete (RPC), made with secondary copper slag as partial [...]

ABSTRACT Porosity is an intrinsic property of many cementitious materials. This study uses a new centrifugation-based low-melting-point metal intrusion technique to characterize and analyze the shape of pores in cementitious [...]

ABSTRACT This study describes the effects of raw mix composition, amount of foaming agent, water-solids ratio, steam pressure, and curing time on the characteristics of autoclaved aerated concrete (AAC). The [...]

ABSTRACT Performance characteristics of mortars are governed by the type of binder, type and grain size distribution of aggregates and their mix proportions. Aiming at parametric optimization of NHL restoration [...]

ABSTRACT This experimental work focused on the study of the possibility of using kaolin dust (K) as filler in sand combined with additions of glass powder (GP), brick waste (BW) [...]

ABSTRACT The article focus on the effect of the porosity within the interfacial zone on pull-off adhesion using X-ray micro computed tomography. The study shows that grinding of the concrete [...]

ABSTRACT To improve the photocatalytic performance and utilization of Ti[O.sub.2] particles in cementitious materials, this work investigated and differentiated the influences of cement substrate pore structure and Ti[O.sub.2] particles loading [...]

ABSTRACT Fibrous-woods have very complex morphology and high heterogeneity, hence their properties are not well-known and need to be investigated, especially concerning microstructural changes due to hygrothermal loads. The present, [...]

ABSTRACT Polypropylene fibers are commonly used to increase the porosity in high-strength concrete (HSC) in hightemperature environments, to release the vapor pressure in the micropores. However, air entrained HSC can [...]

ABSTRACT Nano-Si[O.sub.2] and nano-Ti[O.sub.2] particles were mixed into recycled aggregate concrete (RAC) to enhance its properties. Mercury intrusion porosimetry was used to test the pore structure of the mortar in [...]

ABSTRACT The study reported here characterizes the air-void size distribution in cement-based foam and examine its influence on thermal conductivity, density, and pozzolanic admixture. The cement-based foam was produced by [...]

ABSTRACT As a potential matrix of inorganic coating, aluminosilicate geopolymer has excellent properties of low Volatile Organic Compounds (VOC) emission, anticorrosion and long life. However, little concern has been devoted [...]

ABSTRACT A precise classification of rock raw materials with respect to frost-resistance is still an issue. The knowledge of the rock's origin and its mineral composition and structure is not [...]

ABSTRACT This paper presents a comprehensive investigation regarding the chloride transport and microstructure of plain concrete and fly ash blended concrete under atmospheric chloride environment. Experimental results demonstrate that all [...]

ABSTRACT This paper reviews the evaluation of hydration of cement-based materials by means of electrical methods from the view point of direct and alternative current methods. The merits, demerits and [...]

ABSTRACT Supplementary cementitious materials (SCMs) like fly ash (FA) and blast furnace slag (BFS) are normally used to replace parts of Ordinary Portland cement (OPC) to reduce the cost and [...]

ABSTRACT This paper presents a preliminary work to evaluate influences of water to cement ratio, hydration age and content of superplasticizer on porosity, volume and surface fractal dimensions of pore [...]

ABSTRACT Compared with the traditional partition board, the superior properties of calcium silicate board are attributed to the generation of tobermorite, which can be influenced by many preparation conditions. The [...]

ABSTRACT Two types of poultices, selected after the investigation of a number of raw materials, whose combination showed desired activities, were combined with a Pseudomonas stutzeri suspension to yield effective [...]

ABSTRACT This study investigated the influence of air-entraining agents (AEA) on the performance and microstructure of reactive MgO cement (RMC) samples in comparison with Portland cement (PC) samples under different [...]

ABSTRACT For the protection of walls against salt-damp, various renders with different aggregates are proposed. The purpose of this study is to investigate the impact of natural zeolite, lightweight aggregate [...]

ABSTRACT Influence of bacteria on strength and permeation characteristics concrete incorporating silica fume (SF) as a substitution of cement has been investigated in this study. The cement was partially substituted [...]

ABSTRACT The effects of nano-particles including nano-silica (NS) and nano-limestone (NL) on the crack propagation and microstructure properties of recycled aggregate concrete (RAC) were experimentally investigated in this study. The [...]

ABSTRACT This study was to investigate the effect of coconut coir on the strength and durability properties of cement-lime surface plaster mortar. The purpose of adding coconut coir into the [...]

ABSTRACT The fired hollow clay bricks (FHCBs) have been manufactured by firing a type of highly expansive soils, the black cotton soil (BCS), and natural volcanic ashes (VA), which were [...]

ABSTRACT This paper describes a laboratory procedure to study the sound absorption characteristics of porous asphalt pavement wearing course mix designs, and estimate their contributions to tire-pavement noise reduction. The [...]

ABSTRACT An experimental investigation was undertaken on the physical characterization of a flax fiber-reinforced concrete (FFRC) in both fresh and hardened state. The objective of this study is to provide [...]

ABSTRACT The objective of this research study is the in-depth evaluation of the characteristics of fiber reinforced cement-based composites containing fly ash cenospheres (FACs) as lightweight filler material. The resulting [...]

ABSTRACT Pervious concrete can be described as a porous concrete which permits the penetration of water through the interconnected network of pores. In general, pervious concrete is produced using Ordinary [...]

ABSTRACT Lime-cement mortars are used for repairing building walls, improving thermal and acoustic performance through the modification of their composition and, consequently, their microstructure and properties. In order to evaluate [...]

ABSTRACT The low strength, high likelihood for clogging and inconvenient maintenance are three main challenges for the wider application of pervious concrete pavement. To overcome these challenges, a high strength [...]

ABSTRACT Additive manufacturing is a common technique used to produce 3D printed structures. These techniques have been used as precise application geometry in different fields such as architecture and medicine, [...]

ABSTRACT The durability property of a mortar is the second most important concerns next to its strength. This study investigates some durability properties of a Non-cement binder (Non-cem). The Non-cem [...]

ABSTRACT In order to explore the patterns of porosity evolution during the bearing failure of cement paste backfill (CPB), medical X-ray CT and small loading device were employed to carry [...]

ABSTRACT In this research both the microstructure and thickness of the interfacial transition zone (ITZ) in concretes of Portland cement and lightweight aggregates (LWA) are studied. It has been established [...]