摘要
研究了再生粗骨料替代率和锂渣掺量对再生粗骨料混凝土力学性能的影响。结果表明:未掺入锂渣时,随再生粗骨料替代率的增大,试件的强度均出现先提高后降低的趋势,当再生粗骨料替代率为30%时强度最高;当再生粗骨料替代率为0时,随锂渣掺量的增加,试件强度会不断的提高,当锂渣掺量为20%时强度达到最高;二者同时作用,当再生粗骨料替代率30%、锂渣掺量20%时,试件的立方体抗压强度、轴心抗压强度、劈裂抗拉强度、抗折强度较基准混凝土分别提高39.90%、48.22%、38.21%、12.19%。
Experimental study on the fundamental mechanical properties effect factors of lithium-doped slag recycled coarse aggregate concrete specimens is carried out with different ratios of recycled coarse aggregate and lithium slag. The result showed that when adding lithium slag only,with the increase of RCA replaces rate specimens of strength appeared to first increased and then decreased,peak appears in the RCA replacement rate is 30%. When the ratios of recycled coarse aggregate replacement is 0, with LS content increases,the strength of specimens show a rising trend,peak appears in the LS dosage is 20%. When both of recycled coarse aggregate and lithium slag effects,the proportion for RCA replacement rate is 30%,the LS dosage is 20%. Compared with ordinary concrete the compressive strength,the axial compressive strength,axial splitting tensile strength and folding strength respectively increase 39.90%,48.22%,38.21%, 12.19%.
出处
《新型建筑材料》
北大核心
2016年第11期17-19,42,共4页
New Building Materials
基金
国家自然科学基金项目(51668061)
新疆维吾尔自治区自然科学基金项目(2012211A005)
关键词
再生粗骨料
锂渣
抗压强度
劈裂抗拉强度
抗折强度
recycled coarse aggregate,lithium stag, compressive strength, splitting tensile strength,flexural strength
作者简介
侯勇辉，男，1992年生，河南商丘人，硕士研究生。E—mail：houyonghui31@163．com。
通讯作者：秦拥军，地址：乌鲁木齐市天山区延安路1230号，E-mail：13999257880@163．com。
