混凝土
混凝土
혼응토
CONCRETE
2014年
8期
101-103,106
,共4页
混凝土%超细石灰石粉%力学性能%工作性能
混凝土%超細石灰石粉%力學性能%工作性能
혼응토%초세석회석분%역학성능%공작성능
concrete%ultra-fine limestone powder%mechanical property%working performance
以不同石灰石粉掺量的C30混凝土为研究对象，对其力学性能及工作性能进行分析，得出超细石灰石粉掺量对中等强度等级混凝土性能的影响。结果表明，超细石灰石粉具有优异的减水增塑效果，能显著改善混凝土的工作性能。当石灰石粉掺量为胶凝材料总量的25%时，混凝土的工作性能最佳。在用水量相同的条件下，掺入超细石灰石粉取代部分水泥对混凝土力学性能影响不大。坍落度相同情况下，可通过掺入石灰石粉使得用水量降低的方式来提高混凝土的抗压强度。
以不同石灰石粉摻量的C30混凝土為研究對象，對其力學性能及工作性能進行分析，得齣超細石灰石粉摻量對中等彊度等級混凝土性能的影響。結果錶明，超細石灰石粉具有優異的減水增塑效果，能顯著改善混凝土的工作性能。噹石灰石粉摻量為膠凝材料總量的25%時，混凝土的工作性能最佳。在用水量相同的條件下，摻入超細石灰石粉取代部分水泥對混凝土力學性能影響不大。坍落度相同情況下，可通過摻入石灰石粉使得用水量降低的方式來提高混凝土的抗壓彊度。
이불동석회석분참량적C30혼응토위연구대상，대기역학성능급공작성능진행분석，득출초세석회석분참량대중등강도등급혼응토성능적영향。결과표명，초세석회석분구유우이적감수증소효과，능현저개선혼응토적공작성능。당석회석분참량위효응재료총량적25%시，혼응토적공작성능최가。재용수량상동적조건하，참입초세석회석분취대부분수니대혼응토역학성능영향불대。담락도상동정황하，가통과참입석회석분사득용수량강저적방식래제고혼응토적항압강도。
Researches on C30 concrete with different contents of ultra-fine limestone powder.Through analysis of mechanical property and working performance,it points out that the content of ultra-fine limestone powder has influence on moderate intensity concrete.Test re-sults showed that ultra-fine limestone powder had remarkable effect of water-reducing and plastification ,and can also observably improve working performance of concrete.When the content of ultra-fine limestone powder was 25%,the working performance of concrete was the best.In the condition of similar mix amount of water,it had little influence on mechanical property that using ultra-fine limestone powder to replace some cement.In the condition of similar slump,Using ultra-fine limestone powder to reduce water consumption,and thus increase compressive strength of concrete.
