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1前言大体积混凝土构筑物的施工,在设计和施工阶段,必须十分讲究温度裂缝的对策。在考虑温度裂缝控制对策中,其中之一就是要用混凝土膨胀剂。已有许多成功的工程实例。但是,膨胀剂在大体积混凝土中的效果,尚不十分明了。
1 Foreword Construction of mass concrete structures, in the design and construction phase, must be very particular about the temperature crack countermeasures. One of the strategies to consider when controlling temperature cracks is to use concrete expanders. There are many successful engineering examples. However, the effect of expansive agent in mass concrete is not yet clear.