Influence of Flake Particles in Manufactured Sand on the Performance of Cement Mortar and Concrete

Article Construction & Building Technology

Partial replacement of manufactured sand with homologous granite powder in mortar: The effect on porosity and capillary water absorption

Lin Lu et al.

Summary: In this study, granite powder (GP) was used to partially replace granite manufactured sand (GMS) in cement mortar preparation. Isothermal calorimetry was used to evaluate the hydration activity and influence of GP on cement hydration. The effects of GP substitution ratio on porosity, pore distribution, and capillary water absorption coefficient were studied using various methods. The results showed that GP, as an inert material, can promote cement hydration and reduce porosity and capillary water absorption coefficient with increasing GP substitution ratio. The preliminary results reported in this paper provide new opportunities for the sustainable application of GP in cementitious materials.

CONSTRUCTION AND BUILDING MATERIALS (2023)

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Article Construction & Building Technology

Experimental Studies to Investigate Efficacies of Granite Porphyry Powder as Homologous Manufactured Sand Substitute

Liu Tong et al.

Journal of Advanced Concrete Technology (2023)

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Article Construction & Building Technology

Influence of Stone Powder Content from Manufactured Sand Concrete on Shrinkage, Cracking, Compressive Strength, and Penetration

Mingming Zhang et al.

Summary: The influence of stone powder content from manufactured sand concrete was studied through testing the workability, early age shrinkage strain and cracking, strength, chloride ion penetration, and pore structures of concrete with different stone powder contents. The test results show that adding an appropriate amount of stone powder can improve the working performance and durability of manufactured sand concrete. However, excessive stone powder will reduce the strength and durability of manufactured sand concrete. It is suggested that the best stone powder content for concrete with a water/cement ratio of 0.32 is 10%, and for concrete with a water/cement ratio of 0.45, it should be less than 20%.

BUILDINGS (2023)

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Article Chemistry, Multidisciplinary

Research on Compressive Strength of Manufactured Sand Concrete Based on Response Surface Methodology (RSM)

Hui Ma et al.

Summary: The response surface methodology was used to analyze the effect of stone powder, pulverized fuel ash, and silica fume on the compressive strength of manufactured sand concrete. The study found that stone powder and pulverized fuel ash had the greatest impact, while silica fume had the least impact.

APPLIED SCIENCES-BASEL (2022)

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Article Chemistry, Physical

Effect of Manufactured Sand with Different Quality on Chloride Penetration Resistance of High-Strength Recycled Concrete

Jincai Feng et al.

Summary: The study investigated the variation laws of compressive strength and chloride penetration resistance in high-strength MSRAC with different qualities of manufactured sand. It was found that high-quality manufactured sand can effectively enhance the compressive strength of concrete.

MATERIALS (2021)

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Article Construction & Building Technology