Effects of the addition of nanosilica on the rheology, hydration and development of the compressive strength of cement mortars
Effects of the addition of nanosilica on the rheology, hydration and development of the compressive strength of cement mortars
复制标题
DOI：
10.1016/j.compositesb.2015.07.009
复制
发表时间：
2015-11-01
影响因子：
13.1
通讯作者：
Khatib, J.
中科院分区：
文献类型：
--
作者：
Garcia-Taengua, E.;Sonebi, M.;Khatib, J.
本文研究了包括纳米硅和粉煤灰在内的水泥砂浆的抗压强度的流变学，水合动力学和发展。这些材料的含量和超增塑剂剂量与不同的流变和强度参数有关。通过屈服应力和粘度分析了对流变学的影响。进行了量热测试以评估水泥水合动力学的变化，并分析了最大和最小释放速率。抗压强度在多达56天的不同年龄进行评估。本文提出的方程式使得优化在新鲜和硬化状态下满足所需绩效水平的迫击炮比例是可能的。 （c）2015 Elsevier Ltd.保留所有权利。
This paper examines the rheology, hydration kinetics and development of the compressive strength of cement mortars including nanosilica and fly ash. The contents of these materials and the superplasticizer dosage are related to different rheological and strength parameters. Effects on rheology were analysed through yield stress and viscosity. Calorimetry tests were carried out to assess the variations in cement hydration kinetics, and the maximum and minimum heat release rates were analysed. Compressive strength was evaluated at different ages up to 56 days. The equations presented in this paper make it possible to optimize mortar proportionings that fulfil required performance levels in both fresh and hardened states. (C) 2015 Elsevier Ltd. All rights reserved.