CAJ | 학술논문

　　利用废弃农作物玉米秸秆、橡胶颗粒、聚苯颗粒及天然浮石作为轻骨料，与水泥等原料复合制备成一种新型多相复合轻骨料混凝土。研究了四种原材料的预处理方法、多相复合轻骨料混凝土的制备工艺及配合比设计，并对混凝土的和易性、力学性能和表观密度等性能进行了测定。结果表明，原材料经预处理后，可与水泥形成良好的界面结合，提高硬化混凝土的性能。多相复合的轻骨料混凝土可实现自然条件下的养护。配比中，当秸秆纤维与聚苯颗粒总掺量臆35%，浮石掺量逸30%时即可保证混凝土获得良好的和易性、一定的强度和较小的表观密度。
　　이용폐기농작물옥미갈간、상효과립、취분과립급천연부석작위경골료，여수니등원료복합제비성일충신형다상복합경골료혼응토。연구료사충원재료적예처리방법、다상복합경골료혼응토적제비공예급배합비설계，병대혼응토적화역성、역학성능화표관밀도등성능진행료측정。결과표명，원재료경예처리후，가여수니형성량호적계면결합，제고경화혼응토적성능。다상복합적경골료혼응토가실현자연조건하적양호。배비중，당갈간섬유여취분과립총참량억35%，부석참량일30%시즉가보증혼응토획득량호적화역성、일정적강도화교소적표관밀도。
A new multiphase lightweight aggregates concrete is made of cement, natural pumice, abandoned crop corn straw, rubber particles and polystyrene particles which are made from industrial wastes. The research is focused on the pretreatment method of four kinds of raw materials, the preparation process of composite lightweight concrete and concrete mix design. The performance of concrete such as the workability, mechanical properties and apparent density are tested. The results show that raw materials can form a good interface with the cement after the pretreatment, and the properties of hardened concrete will be improved. The curing of the multiphase lightweight aggregates can be realized under the natural condition. When the amount of the straw fiber and the polystyrene particles is less than 35%and the pumice is more than 30%, the fresh concrete would be had a good workability, a certain strength and smaller apparent density.