The Research of Recycle-oriented Concrete with Easy-to-collect Aggregate

阐明了涂覆骨料混凝土的基本性能、涂覆剂的配制方法及涂覆骨料的粘结性能。(1)研究了表面涂覆水乳化骨料对混凝土力学性能的影响，并对从混凝土中收集的再生骨料的质量进行了研究。结果表明，原集料与再生集料的吸附性能差异对涂覆剂的性能有影响，表明涂覆剂对涂覆集料的质量有影响。重要的是，涂层效果应该均匀出现。(2)用数码显微镜研究了复合树脂乳化覆盖涂层集料的表面推进特性。原集料表面凹凸不平，经涂布剂涂布后，其表面平整程度与涂布次数成正比，可以均匀地生产出不同种类集料的涂布集料。(3)研究了由高强水泥浆体模型制成的涂料骨料与膏体基体之间的粘接强度。粘接强度可根据涂胶次数的比例进行有效调节。认为涂料对易集料可再生混凝土的发展有一定的影响。

we made it clear that fundamental properties of the concrete using coating aggregates, the methods of setting problems of coating agent and adhesion properties of the coating aggregates.(1) Mechanical properties of the concrete using coating aggregates which the surface was covered with water saluted emulsion and the qualities of recycled aggregates collected from the concrete were investigated.As effects, the differences between absorption properties of virgin aggregates and recycled aggregates had effects on condition of coating agent and it was cleared that the qualities of coating aggregates were changing by the coating agent. It was important that the coating effects should be appeared equally.(2) The surface propel-ties of coating aggregates which the surface was covered with composite resin saluted emulsion were investigated by digital microscope. The unevenness surface of virgin aggregates became flat in proportion of coating times by the coating agent and it can be produced the coating aggregates equally with no differences of kinds of aggregates.(3) the adhesive strength between coating aggregates and paste matrix made of high strength cement paste model was investigated. The adhesive strength could be adjust in proportion of coating times effectively. It was thought that the coating agent could have effects on development of recyclable concrete with easy collecting aggregate.