文献类型：期刊文献

中文题名：基于正交试验的纳米CaCO3再生混凝土抗压强度研究

英文题名：Study on Compressive Strengths of Recycled Concrete with Nano-CaCO3 Carbonate Based on Orthogonal Test

作者：胡海波[1];闫春岭[2];何智海[1];李增[1];詹培敏[1]

机构：[1]绍兴文理学院土木工程学院,312000;[2]安阳工学院土木与建筑工程学院,455000

年份：2020

卷号：0

期号：6

起止页码：94

中文期刊名：混凝土与水泥制品

外文期刊名：China Concrete and Cement Products

收录：北大核心2017、北大核心

基金：国家自然科学基金青年科学项目(51602198);浙江省自然科学基金项目(LY20E020006)。

语种：中文

中文关键词：正交试验;纳米CaCO3;再生混凝土;抗压强度

外文关键词：Orthogonal test;Nano-CaCO3;Recycled concrete;Compressive strength

中文摘要：通过正交试验研究了纳米CaCO3掺量、水胶比、砂率和再生粗骨料掺量对再生混凝土抗压强度的影响。结果表明,影响再生混凝土7 d抗压强度的主要因素是水胶比,而影响再生混凝土14 d和28 d抗压强度的主要因素是再生粗骨料掺量。此外,适量纳米CaCO3能够改善再生混凝土的抗压强度,其对早期抗压强度的提高更加明显。

外文摘要：The effects of nano-CaCO3 content,water-binder ratio,sand ratio and recycled coarse aggregate content on the compressive strength of recycled concrete were studied by the orthogonal test.The results show that the main factor affecting 7 d compressive strength of recycled concrete is the water-binder ratio,while the main factor affecting 14 d and 28 d compressive strength of recycled concrete is the content of recycled coarse aggregate.In addition,the compressive strength of recycled concrete can be improved by adding the appropriate amount of nano-CaCO3,and which is more obvious for the early compressive strength.