Application of polypropylene microfiber in technology of geopolymer fine grained concrete
Abstract
Application of polypropylene microfiber in technology of geopolymer fine grained concrete
Incoming article date: 18.06.2018The advantages of using polypropylene fiber in technology of geopolymer concrete were considered. It was established that the use of dispersed reinforcement makes it possible to improve the critical characteristics for this type of concrete: strength, crack resistance and shrinkage. It was shown that an important problem of using polypropylene fiber is obtaining of a homogeneous structure of concrete with fiber. The effectiveness of various ways of introducing polypropylene fiber VSM into fine grained geopolymer concrete mixture was studied. It was found that the most effective way of introducing fiber is pre-mix it with a moistened fine aggregate.
Keywords: "geopolymer, fine-grained concrete, disperse reinforcement, polypropylene fiber, mixing technology, compressive strength, flexural strength, homogeneity, granite, slag "