聚羧酸减水剂对碳化养护加气混凝土性能的影响
The influence of polycarboxylate superplasticizer on the performance of carbonation cured aerated concrete
王奕杰 1周凤娇 1谭新宇 1张宾 1陶从喜 1邓恺1
作者信息
- 1. 华润水泥技术研发(广西)有限公司,广西 南宁 530000;华润水泥技术研发有限公司,广东 广州 510460
- 折叠
摘要
采用钢渣、水泥、石膏、石灰等为原材料,通过预养护加二氧化碳养护的方式,研究了聚羧酸减水剂对碳化养护加气混凝土产品性能的影响.结果表明:聚羧酸减水剂对碳化养护加气混凝土的流变性能、干密度、抗压强度及固碳量具有较大影响,聚羧酸减水剂掺量由0.60%逐渐增大到0.76%,碳化养护加气混凝土测试样的屈服应力及固碳量逐渐增大,干密度及强度逐渐降低.此外,减水剂掺量0.72%时,碳化养护加气混凝土综合性能最优,此时,干密度为621 kg/m3,抗压强度为4.0 MPa,固碳量为11.52%.
Abstract
By means of precuring and carbon dioxide curing,this paper studied the effects of polycarboxylate superplasticizer on the properties of carbonized cured aerated concrete products by taking steel slag,cement,gypsum,lime,etc.as raw materials.The results showed that:polycarboxylate superplasticizer had a significant impact on the rheological properties,dry density,compressive strength,and carbon fixation of carbonized cured aerated concrete.The dosage of polycarboxylate superplasticizer gradually increased from 0.60%to 0.76%,and the yield stress and carbon fixation of carbonized cured aerated concrete test samples gradually increased,while the dry density and compressive strength gradually decreased.In addition,when the dosage of polycarboxylate superplasticizer was 0.72%,the compressive strength of carbonized cured aerated concrete was optimal.At this time,the dry density was 621 kg/m3,the compressive strength was 4.0 MPa,and the carbon fixation was 11.52%.
关键词
聚羧酸减水剂/二氧化碳/抗压强度/固碳Key words
polycarboxylate superplasticizer/carbon dioxide/compressive strength/carbon fixation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据