水泥工程
水泥工程
수니공정
CEMENT ENGINEERING
2013年
3期
87-89
,共3页
机制砂%混凝土%石粉含量%性能
機製砂%混凝土%石粉含量%性能
궤제사%혼응토%석분함량%성능
machine-made sand%concrete%stone dust content%property
以胶凝材料（P.O42.5水泥，粉煤灰，矿粉）、碎石、水及三种性能不同的机制砂制成了C40机制砂混凝土，试验研究其石粉含量对机制砂混凝土工作性能、力学性能和耐久性能的影响。结果表明，适量的石粉可以改善机制砂混凝土的工作性能，增加其抗压强度，增强其抗冻性和耐久性；另外，球形度越好的机制砂，其石粉在混凝土中的可掺量越大。
以膠凝材料（P.O42.5水泥，粉煤灰，礦粉）、碎石、水及三種性能不同的機製砂製成瞭C40機製砂混凝土，試驗研究其石粉含量對機製砂混凝土工作性能、力學性能和耐久性能的影響。結果錶明，適量的石粉可以改善機製砂混凝土的工作性能，增加其抗壓彊度，增彊其抗凍性和耐久性；另外，毬形度越好的機製砂，其石粉在混凝土中的可摻量越大。
이효응재료（P.O42.5수니，분매회，광분）、쇄석、수급삼충성능불동적궤제사제성료C40궤제사혼응토，시험연구기석분함량대궤제사혼응토공작성능、역학성능화내구성능적영향。결과표명，괄량적석분가이개선궤제사혼응토적공작성능，증가기항압강도，증강기항동성화내구성；령외，구형도월호적궤제사，기석분재혼응토중적가참량월대。
C40 machine-made sand concrete was made with cementing material(P.O 42.5 cement,fly ash,mineral powder), crushed stone,water and three different kinds of machine-made sand. The impact of stone dust rate on working performance, mechanical prop-erty and durability of machine-made sand concrete was studied in this experiment. The result shows that defined amount of stone dust can modify the working performance, increase the compressing strength,and improve the frost resistance and durability of concrete, and the better sophericity of machine-made sand,the more stone dust that can be added into concrete.
