Performance of water-retention of the byproduct of fine grain or powder types as circulatory construction resources.

工业副产品在循环型社会中以细粒或粉末状排放。副产物的含水率会影响混凝土的性能。本研究的目的是评价保水剂的保水性能和副产物的储藏性能。为此，进行了基础数据的收集和实验。本研究以熔融矿渣、硅质粉废渣和废旧粘土屋面砖为研究对象。此外，还对路面基层材料的使用进行了研究。(1)熔渣的保水性能与细集料相当。对于湿状态下的混合，表面水分的补偿是可能的。(2)硅质粉末废物硅质粉末废物的保水性能比通常的细集料要大。与干燥条件…相比，它的容量变小在潮湿的条件下消耗更多的能量。一次吸水保水性能高，排出困难。(3)废粘土屋面砖对于相同质量的原料，由于粉碎后颗粒直径的不同，在密度和吸水率上有很大的差异，新拌混凝土的性能和普通细骨料一样可以控制。硬化混凝土的性能也与普通混凝土相同。但随着混合率的提高，弹性模量下降，吸水性能和排水性能都较高。(4)评价细粒或粉状副产物的保水性能，通过将各种副产物填入土袋中铺设，可以缓解热岛现象。结果表明，熔渣是一种合适的保水材料。较少

An industry by-product is discharged in the circulation type society with fine grain or powder types. Moisture content of the by-product influences the properties of concrete. The purpose of this study is to evaluate the performance of water-retention, and the storage of the by-products. So, the collection of the fundamental data and an experiment were enforced. A molten slag, a siliceous powdered waste and a waste clay roof tiles were made the target by the research. Furthermore, use to the way base course material for pavement was examined, too.The following studies were conducted in this research.(1)Molten SlagThe performance of water-retention of molten slag is equality to fine aggregate. As for wet condition to mixing, correspondence is possible by the compensation of the surface moisture.(2)Siliceous Powdered WasteThe performance of water-retention of siliceous powdered waste is bigger than a usual fine aggregate. A capacity of it becomes small in comparison with the dryness cond … More ition under the wet condition. The discharge of the water is difficult because the performance of water-retention is high when it absorbs the water once. It is returned in the powder when it dries the siliceous powdered waste of wet condition.(3)Waste Clay Roof TilesAs for the raw material of the same quality as well, the waste clay roof tiles has the much difference brings about in the density and the absorption by the difference in the grain diameter after smashing.Performance of fresh concrete can be controlled as well as usual fine aggregate. The properties of the harden concrete are equal to the usual concrete, too. But, an elastic modulus declines caused by the increase in the mixing rate.Both the water absorbing performance and the drainage performance are high.(4)Evaluating the performance of water-retention of the by-product of fine grain or powder types.It is possible that it eases heat island phenomenon by cramming various by-products in soil-bag and laying it. Molten slag is shown as suitable water-retention material. Less