不同胶凝材料混凝土绝热温升试验

Experimental study on adiabatic temperature rising for concrete of different cement materials

通过系统开展混凝土绝热温升试验,对比研究单掺粉煤灰、单掺矿粉、粉煤灰矿粉双掺混凝土绝热温升的特点。研究结果表明:粉煤灰可有效降低混凝土绝热温升,大掺量矿粉可有效缓解水泥矿物水化引起的集中放热,粉煤灰和矿粉双掺的混凝土的水化放热特点更适合于大体积混凝土工程。

Based on the systematic experiments on the adiabatic temperature rising of concrete, we study and compare the adiabatic temperature rising characteristics of concrete which is mixed with fly ash only, slag only and a compound of fly ash and slag respectively. The research results reflect that the fly ash can reduce the adiabatic temperature effectively, large-quantity substitution of slag can effectively relieve the concentrative heat liberation from cement mineral hydration, and the compound of fly ash and slag are more appropriate heat liberation characteristics of concrete which is mixed with a to mass concrete works.