Durability of pfa concrete
Report BR 216
Document Status
Current
Supplement
Building Supplement
Series
Report
Abstract
Principally concerned with the results from a laboratory study on the effects of curing on the durability of concretes containing pulverised-fuel ash (pfa). The Building Research Establishment has been carrying out an extensive laboratory research programme into the durability of pfa concrete for more than 10 years. This has produced considerable information on the strength of pfa concrete and durability properties including permeability, carbonation, alkali-silica reaction and attack by sulphates, acid and frost. Although it is recognised that adequate curing is essential for all concrete if the potential properties of the concrete are to be fully realised, it has been suggested that pfa concrete may be more sensitive to curing due to it slower development of properties compared with ordinary Portland cement (OPC) concrete. This study set out to establish the response of the strength and durability of OPC and pfa concretes to a range of curing conditions representative of the treatment concrete may receive on site. Design of concrete mixes. the objective of this study was, specifically, to determine the effect of curing time and temperature on the durability of pfa concrete. It was considered, therefore, desirable to compare concretes (with and without pfa) that would be expected to be of equal durability when adequately cured.
Author
Thomas, M. D. A. and Matthews, J. D.
ISBN
9780851255200
Subjects
- Materials
- In situ concrete/cement
Publisher History
BRE is a building science centre that generates new knowledge through research. This is used to create products, tools and standards that drive positive change across the built environment. BRE helps its government and private sector clients meet the significant environmental, social and economic challenges they face in delivering homes, buildings and communities. BRE is owned by the BRE Trust, a registered charity. The Trust uses the profits made by the BRE companies to fund research and education that advances knowledge of the built environment.
Information
NBS
NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.
Accuris
We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.