工业废渣陶粒混凝土性能及其影响因素研究

Study on the Performance and Influence Factors of Industrial Waste Residue Ceramic Concrete

研究了养护制度、胶凝材料组成、骨胶比、水胶比、引气剂及水玻璃等因素对废渣陶粒混凝土性能的影响,得到了较适合的废渣陶粒混凝土养护制度和胶凝材料组成。研究表明:骨料用量对废渣陶粒混凝土的强度影响较大;增大水胶比使得废渣陶粒混凝土强度有所降低;掺加引气剂可明显改善陶粒混凝土和易性,但引气剂掺量过大,会导致陶粒混凝土强度损失较大;增加水玻璃用量,废渣陶粒混凝土强度有所提高。水胶比及水玻璃用量对陶粒混凝土的容重和软化系数影响不大,而掺加引气剂后陶粒混凝土的容重明显降低。以矿粉、钢渣等工业废弃物为胶凝材料,并采用引气技术可制备理想的轻质自保温墙体材料。

The effect of curing regime,composition of cementitious materials,aggregate-binder ratio,water-binder ratio,air entraining agent and water glass on the performance of industrial waste residue ceramic concrete（ IWRCC） were studied. The appropriate curing regime and cementitious material composition of IWRCC were obtained. The results show that the amount of aggregate has a great influence on the strength of IWRCC. Increasing the water cement ratio makes compressive strength of IWRCC reduced. The addition of air entraining agent can significantly improve the workability of IWRCC. However,if the air entraining agent content is too large,it will lead to large loss of strength. Increasing the dosage of water glass,the strength of IWRCC is improved. The water-cement ratio and water glass dosage have little influence on softening coefficient and bulk density of IWRCC,while adding air entraining agent had significantly lower bulk density. Using slag powder,steel slag powder and other industrial wastes as cementitious material and the air entraining technology can prepare an ideal lightweight self thermal insulation wall materials.