施工工艺对再生碎砖混凝土性能影响的研究

Research on recycle brickbat aggregate concrete with different construction technology

通过对3种不同施工工艺的再生碎砖混凝土进行力学以及和易性试验研究,结果表明:采用附加水法配制的再生碎砖混凝土随着附加水的减少,其抗压强度提高,但降到粗骨料吸水70%时,其抗压强度提高不明显,而和易性则是按粗骨料的吸水率为80%~90%时表现较好;使用浸泡预湿法和洒水预湿法的再生碎砖混凝土均有较高的抗压强度及较好的和易性。

Base on the mechanical properties and workability to 3 kinds of different construction technology of recycle brickbat aggregate concrete, the results show the recycle brickbat aggregate concrete used with additional water has decrease the additional water use and its compressive strength will increased,when the additional water use has decrease to 70% of aggregate＇s saturated water absorption, the compressive strength increased but not obvious.When the additional water use during 80% to 90% of aggregate＇ s saturated water absorption, it will have good workability.The compressive strength of recycle brickbat aggregate concrete used with pre-sprinkling water and pre-soaking water are high and which workability are good.