Utilization of industrial waste perlite powder in self-compacting concrete
Utilization of industrial waste perlite powder in self-compacting concrete
复制标题
DOI：
10.1016/j.jclepro.2017.04.103
复制
发表时间：
2017-07-10
影响因子：
11.1
通讯作者：
Nehme, Salem G.
中科院分区：
文献类型：
--
作者：
El Mir, Abdulkader;Nehme, Salem G.
在膨胀型聚氨酯生产的不同阶段，会产生各种可用于建筑业的废弃副产品，从而支持可持续发展的环境。本文研究了高掺量的废胶粉（WPP）作为自密实混凝土（SCC）填料的应用。高炉矿渣水泥作为主要粘结剂，沿着偏高岭土（MK）作为辅助胶凝材料（SCM），帮助我们生产出几种熟料含量低（190-220 kg/m3）的正常振动混凝土（NVC）和SCC混合料。为了确保SCC生产的适当的流变性能，填料被添加到SCC混合物，和新拌混凝土的流变性能和硬化混凝土的机械和耐久性性能进行了研究。结果表明，WPP对混凝土的微观结构具有显著的火山灰效应，从而对混凝土的抗压强度产生积极的影响。此外，增强的耐久性性能的SCC混合物纳入WPP获得。(C)2017爱思唯尔有限公司版权所有
Different stages in the production of expanded perlite provide various types of waste by-products that could be used in the building industry, thus supporting a sustainable environment. In this study, the use of waste perlite powder (WPP) at a high content as a filler material in self -compacting concrete (SCC) was investigated. The combination of blast furnace slag cement as the main binder, along with metakaolin (MK) as a supplementary cementitious material (SCM), helped us produce several normally vibrated concrete (NVC) and SCC mixtures with low clinker content (190-220 kg/m(3)). To ensure the appropriate rheological properties for SCC production, filler materials were added to the SCC mixtures, and the rheological properties of the fresh concrete and the mechanical and durability properties of the hardened concrete were investigated. The results indicated that WPP had a significant pozzolanic effect on the concrete microstructure, resulting in a positive impact on the compressive strength of the concrete. Furthermore, enhanced durability properties of SCC mixtures incorporating WPP was obtained. (C) 2017 Elsevier Ltd. All rights reserved.