摘要
对经浮选脱炭后的粉煤灰进行了制备混凝土的配比试验,研究了水胶比与粉煤灰掺量对混凝土抗折强度和抗压强度的影响,试验结果表明,当粉煤灰最大掺量为50%,水胶比为0.34时,混凝土28 d抗压强度为35.52 MPa,达到了混凝土规定等级C30级以上,其28 d抗折强度为4.58 MPa。
In order to study the proportion of flyash that was decarburized by flotation for preparation of concrete, test was conducted on the influence of both water-to-cementitious materials ratio and dosage of flyash on rupture and compressive strength. Results show that, with the maximum dosage of flyash at 50%, water-to-cementitious material ratio at 0.34, the compressive strength and rupture strength of concrete can reach 35.52 MPa and 4.58 MPa after 28 d, respectively, which is up to the stioulated concrete grade C30.
出处
《矿冶工程》
CAS
CSCD
北大核心
2013年第6期13-14,18,共3页
Mining and Metallurgical Engineering
基金
贵州省教育厅自然科学研究项目(黔教科(2011)013号)
关键词
粉煤灰
混凝土
浮选脱炭
flyash
concrete
decarburization by flotation
