Durability of Portland blast-furnace slag cement concrete
Durability of Portland blast-furnace slag cement concrete
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DOI：
10.1016/s0958-9465(98)00032-8
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发表时间：
1999-02-01
影响因子：
10.5
通讯作者：
Osborne, GJ
中科院分区：
文献类型：
--
作者：
Osborne, GJ
本文总结了英国建筑研究机构对磨细的玻璃高炉矿渣(粒化和球化)用作胶凝材料的混凝土的性能和长期耐久性的研究结果。利用现场结构试验、实验室和暴露现场研究的数据，对矿渣水泥混凝土和相似配合比的普通硅酸盐水泥混凝土的性能进行了比较。为有效利用磨细的玻璃高炉矿渣在混凝土中的应用提出了一些建议。肯定了混凝土使用者可获得的许多技术好处，如减少放热、降低渗透率和提高后期强度、减少氯离子渗透、提高抗硫酸盐侵蚀和抗碱硅反应能力。然而，对于良好的早期养护的重要性提出了警告，以确保将碳化、表面结垢和霜冻侵袭的不良影响降至最低。本文旨在为那些关心混凝土的设计、规格、应用和性能的人在实践中提供指导，与普通波特兰水泥相比，矿渣还可以帮助降低水泥生产中的成本和能源需求。(C)1999爱思唯尔科学有限公司。保留所有权利。
This paper summarizes the results of studies carried out at the Building Research Establishment in the UK, on the performance and long-term durability of concrete where ground glassy blast-furnace slag (granulated and pelletized) has been used as a cementitious material. Using data from tests on site structures and laboratory and exposure site studies, comparisons are made of the properties and performances of the slag cement concretes with normal Portland cement concretes of similar mixture proportions. A number of recommendations are given for the effective use of ground glassy blast-furnace slag in concrete. The many technical benefits available to the concrete user, such as reduced heat evolution, lower permeability and higher strength at later ages, decreased chloride ion penetration, increased resistance to sulfate attack and alkali silica reaction were affirmed. However, a cautionary warning of the importance of good early curing is made to ensure that the adverse effects of higher rates of carbonation, surface scaling and frost attack are minimized. The paper is intended to provide guidance for those concerned with the design, specification, application and performance of concrete in practice where slag can also help to reduce costs and energy demands in the production of cement compared with normal Portland cement. (C) 1999 Elsevier Science Ltd. All rights reserved.