作者: V.S. Ramachandran , Ralph M. Paroli , James J. Beaudoin , Ana H. Delgado
DOI: 10.1016/B978-081551487-9.50010-4
关键词: Metallurgy 、 Retarder 、 Fly ash 、 Cement 、 Silica fume 、 Composite material 、 Properties of concrete 、 Pozzolan 、 Ground granulated blast-furnace slag 、 Materials science 、 Superplasticizer
摘要: This chapter explores that chemical admixtures, such as accelerators, retarders, water reducers, and superplasticizers are generally soluble added in small amounts. They significantly affect the properties of concrete fresh hardened states through physico-chemical surface interactions. In contrast to materials fly ash, silica fume, blast furnace slag, natural pozzolans, others substantial amounts concrete. Most them react with components cement paste yielding higher strengths better durability characteristics. used replacement materials. These known by various names. The European standards refer additions. American society for testing (ASTM) classifies mineral admixtures. this chapter, these referred supplementary cementing