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Updated: Jun 17, 2025

The Effect of Interfacial Chemical Bonding in TiO2-SiO2 Composites on Their Photocatalytic NOx Abatement Performance
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纳米SiO2@PTPEG-VPA共聚物的合成及其对早期水泥水化的影响

Lei Dong1, Xin Shu2, Qianping Ran1,2

  • 1Jiangsu Key Laboratory of Construction Materials, School of Material Science and Engineering, Southeast University Nanjing 211189 China leidong@seu.edu.cn.

RSC advances
|August 14, 2024
PubMed
概括

用含的共聚合物 (PTPEG-VPA) 修改纳米 (纳米-SiO2) 的表面,有效地防止了水泥糊中的纳米粒子聚合. 这种化学接种增强了分散性,并影响了水泥的水化和早期力量的发展.

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The hydration of cement is an exothermic reaction in which heat is generated as cement hydrates. This heat of hydration is critical to cement's strength development. The rate at which this heat is generated affects the temperature rise, with a majority of the heat being released early in the hydration process, half within the first three days, and about 75% within the first week.
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Porosity in Cement Paste

The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
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