Effects of Superabsorbent Polymers on Shrinkage of Concrete: Plastic, Autogenous, Drying
Effects of Superabsorbent Polymers on Shrinkage of Concrete: Plastic, Autogenous, Drying
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DOI：
10.1007/978-94-007-2733-5_7
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
V. Mechtcherine;L. Dudziak
中科院分区：
文献类型：
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作者：
V. Mechtcherine;L. Dudziak
本章展望了SAP在混凝土施工中的主要应用之一，即减缓混凝土的自收缩。特别地，介绍和讨论了SAP作为添加剂在低水灰比和低渗透微观结构的胶凝材料中的内固化效果。由于SAP的加入（通常与额外的水一起）不仅会影响自缩水率，还会影响其他类型的体积变化，因此本章也将对此进行讨论。此外，还考虑了内部养护和非内部养护混凝土由于受约束的自收缩引起的应力的发展。
This chapter deals prospectively with one of the main applications of SAP in concrete construction, the mitigation of the autogenous shrinkage of concrete. In particular, the effects of using SAP as an additive for internal curing in cementitious materials with a low water-to-cement ratio and a low-permeability microstructure are presented and discussed. Since the addition of SAP, often in conjunction with extra water, influences not only autogenous shrinkage but also other types of volumetric changes, this is addressed as well in this chapter. Furthermore, the development of stresses due to restrained autogenous shrinkage is also considered for concretes with and without internal curing.