【摘 要】
：
The effect of LiAl-layered double hydroxides (LiAl-LDHs) with 3D micro-nano structures on the early properties and hydration process of calcium sulphoaluminate cement (CSAC) clinker was investigated.T
【机 构】
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School of Material Science and Engineering, Henan Polytechnic University, Jiaozuo 454000, China
【出 处】
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The 14th International Congress on the Chemistry of Cement (
论文部分内容阅读
The effect of LiAl-layered double hydroxides (LiAl-LDHs) with 3D micro-nano structures on the early properties and hydration process of calcium sulphoaluminate cement (CSAC) clinker was investigated.Three Li-Al layered double hydroxides (LiAl-LDHs) with different particle size were prepared through a facile solvothermal method.CSCA clinker incorporating LiAl-LDHs with constant water to cement radio were made and tested.The results indicate that a higher content of LiAl-LDHs resulted in a faster hydration rate, a shorter setting time and a higher early compressive strength.Besides, with the decrease of the particle size of LiAl-LDHs, the hydration rate was accelerated with corresponding increase in compressive strength.However,the influence of particle size of LiAl-LDHs on the initial setting time and final setting time of CSAC clinker is not significant.Moreover, the addition of LiAl-LDHs did not cause a new phase formed, but increased the quantity of hydration products which resulting in homogeneous, dense and compact microstructure and providing higher compressive strength and shorter setting time.
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