..., the influences of TEOS on compressive strength, fluidity, setting time, pore structure, water absorption process, hydration products and water contact angle of AAS were studied. The experimental results demonstrated that the presence of unhydrolysed TEOS slightly enhanced the fluidity and prolonged...

... with conventional ordinary Portland cement, primarily attributed to 50% SAC replacement and reduced clinker dependency. The experimental results demonstrated that 4% DG incorporation enhanced the 28-day compressive strength and reduced the chloride diffusion coefficient, correlated with a refined pore structure...

... calcium sulfoaluminate cement cellulose ethers cement cementitious materials hydrated cement hydration performance pore structure Portland cement Fund of the National Natural Science Foundation of China 52302026) Fund of Zhejiang Provincial Natural Science Foundation of China...

...Guangfeng Ou; Toshiharu Kishi The main hydration product of cement, calcium silicate hydrate (C-S-H), is characterised by a high specific surface area (SSA) and a complex multi-scale pore structure, which leads to difficulties and controversies regarding the quantitative evaluation...

... 2024 Emerald Publishing Limited: All rights reserved 2024 blast furnace slag mortar pore structure sewage treatment & disposal sulfate-related deterioration Concrete structures are widely used for sewage treatment and transportation. The concretes are prone to be eroded...

... in the chloride diffusion coefficient of the mortar and concrete. Furthermore, the incorporation of GGBFS led to a remarkable refinement in pore structure of the hardened paste due to pozzolanic and filler effects. Therefore, the partial replacement of cement with high CMA contents (≥70 wt%) in concrete...

... of both chloride ions and sulfate ions. High-temperature steam curing also deteriorates the pore structure compared to standard curing. As a result, the resistance of concrete to ion corrosion is reduced under high-temperature steam curing. In addition, the surface ion concentration and binding capacity...

... composite materials compressibility pore structure Water is both a reactant and a transport carrier in the SEFM-MSW. It is thus very important to study the effect of different w/c ratios on SEFM-MSW performance: a low w/c ratio is unfavourable to reactions and transportation of the material...

...). The incorporation of FA or S also increased the diffraction peak of carboaluminate, indicating more carboaluminate was formed. The synergistic effect between LP and SCMs refined the pore structure and reduced the porosity of the cement pastes. The synergistic effect between LP and FA or S increased the density...

...Yuan Gao; Hongwen Jing; Zefu Zhou; Xinshuai Shi; Zhenlong Zhao A theoretical model to predict the water permeability of nano-reinforced cement pastes from the pore structure (including the pore size distribution, pore interconnection, porosity and microcracks) is presented. The model is based...

...Shuai Bai; Xinchun Guan The aim of this paper was to use the surface fractal dimension (D_s) to evaluate the chloride ion penetration of cement mortar in extremely cold regions. Pore structure is a critical factor that influences the permeability of cement mortar. This study...

... was recorded over 48 h. 22 08 2019 16 06 2020 23 07 2020 ICE Publishing: All rights reserved 2020 compressive strength pore structure Portland cement Calcium aluminium silicate hydrate (C–A–S–H), which is the main hydration product of alkali-activated slag, has...

... benefits the dispersing properties of PCEs and therefore the PCEs with ester groups performed better in dispersibility in comparison with the PCEs with sulfonic acid groups. The stability of bubbles entrained in fresh cement mortar leads to differences in the pore structure of hardened cement mortar...

... microstructure pore structure Portland cement After China, India is the second-largest consumer of Portland cement (PC) in the world; the production of fly ash from thermal power plants is expected to reach 140 metric tonnes by 2020 (Senapati, 2011). As a result, recent research has been dedicated...

... of the specimen surfaces. calcium carbonate environmental aspects pore structure Many studies have shown the benefits of using carbon dioxide (CO_{2) to carbonate cement-based materials, such as the improvement of their mechanical properties, with awareness of possible crack formation by calcium}...