甘蔗渣灰对混凝土和易性及强度的影响

The effect of Sugarcane Bagasse Ash on the Workability and Strength of Concrete

将甘蔗渣灰替代等质量水泥,研究不同活性及掺量甘蔗渣灰对混凝土的工作性能、抗压强度的影响。试验结果表明:甘蔗渣灰掺量在30%以下时,随着甘蔗渣灰掺量的增加,混凝土拌和物的流动性逐渐降低,但降低的幅度不大;混凝土的强度随着甘蔗渣灰掺量的增加呈现出先增加后降低的趋势,甘蔗渣灰最佳掺量为10%。通过预处理过后的甘蔗渣灰,使混凝土拌和物的流动性增大,抗压强度增强,可作为辅助胶凝材料使用。

Replacing equal quality cement with sugarcane bagasse ash to study the effects of different activity and dosage of sugarcane bagasse ash on the workability and compressive strength of concrete.The experimental results show that when the content of sugarcane bagasse ash is below 30%,the fluidity of the concrete mixture gradually decreases with the increase of sugarcane bagasse ash content,but the decrease is not significant;The strength of concrete shows a trend of first increasing and then decreasing with the increase of sugarcane bagasse ash content,and the optimal content of sugarcane bagasse ash is 10%.The pre-treatment of sugarcane bagasse ash increases the fluidity and compressive strength of the concrete mixture,making it suitable as an auxiliary cementitious material.