Freeze-thaw Resistance of Concrete Containing Fly Ash and Type IA Portland Cement
Author : Zeyad Taha Zayed
Publisher :
Page : 104 pages
File Size : 43,38 MB
Release : 1985
Category : Concrete
ISBN :
Author : Zeyad Taha Zayed
Publisher :
Page : 104 pages
File Size : 43,38 MB
Release : 1985
Category : Concrete
ISBN :
Author : Ken Isenberger
Publisher :
Page : 42 pages
File Size : 45,88 MB
Release : 1981
Category : Fly ash
ISBN :
Effect of fly ash class, source and amount on the compressive strength and freeze-thaw durability of fly ash concrete.
Author : J. Marchand
Publisher : CRC Press
Page : 323 pages
File Size : 37,4 MB
Release : 2004-03-01
Category : Architecture
ISBN : 0203627091
Concrete durability in climates where freezing and thawing occurs is a continuing problem. It is particularly acute for highway and bridge structures, where de-icing salts are used to combat the effects of frost, snow and ice. These salts can cause damage to concrete and accelerate corrosion of reinforcements. This book presents the latest international research on this area, with contributions from North America and Europe which were presented at an international RILEM workshop.
Author : R Auberg
Publisher : CRC Press
Page : 400 pages
File Size : 37,26 MB
Release : 2004-03-01
Category : Architecture
ISBN : 0203627326
This book forms the proceedings of the international workshop to be held in Essen, Germany. This workshop summarises the conclusion of the technical committee's investigations into the resistance of concrete to freeze-thaw attack, specific in this to resistance with or without de-icing chemicals. It presents the RILEM recommendations on testing the freeze-thaw and de-icing salt resistance of concrete.
Author : Robert Andrew Carnazzo
Publisher :
Page : 146 pages
File Size : 18,87 MB
Release : 1990
Category :
ISBN :
Author : Chengsheng Ouyang
Publisher :
Page : 70 pages
File Size : 13,21 MB
Release : 1997
Category : Concrete
ISBN :
The freeze-thaw resistance of concretes was studied. Nine concrete mixes, made with five cements and cement-Class C fly ash combinations, were exposed to freeze-thaw cycling following 110 to 222 days of moist curing. Prior to the freeze-thaw cycling, the specimens were examined by a low-vacuum scanning electron microscope (SEN) for their microstructure. The influcence of a wet/dry treatment was also studied. Infilling of ettringite in entrained air voids was observed in the concretes tested. The extent of the infilling depends on the period of moist curing as well as the wet/dry treatment. The concretes with 15% Class C fly ash replacement show more infilling in their air voids. It was found that the influence of the infilling on the freeze-thaw durability relates to the air spacing factor. The greater the spacing factor, the more expansion under the freeze-thaw cycling. The infilling seems to decrease effective air content and to increase effective spacing factor. The infilling also implies that the filled air voids are water-accessible. These might lead to concrete more vulnerable to the freeze-thaw attack. By combining the above results with field observations, one may conclude that the freeze-thaw damage is a factor related to premature deterioration of PCC pavements in Iowa.
Author : Shamshad Ahmad Khan
Publisher :
Page : 298 pages
File Size : 48,79 MB
Release : 1992
Category : Portland cement
ISBN :
Author : Roxanne C. Kreisel
Publisher :
Page : 222 pages
File Size : 22,21 MB
Release : 1998
Category : Concrete
ISBN :
This report presents freeze-thaw durability results of an investigation regarding the application of high performance concrete (HPC) to prestressed bridge girders. This study included a total of 30 concrete mixes and more than 130 specimens, with the following variables: aggregate type: round river gravel, partially-crushed gravel, granite, high-absorption limestone, and low-absorption limestone; cementitious material composition: Type III portland cement only, 20% fly ash, 7.5% silica fume, and combination of 20% fly ash with 7.5% silica fume replacement by weight of cement; and curing condition: heat-cured or seven-day moist-cured.
Author : Thomas Joseph Pasko
Publisher :
Page : 252 pages
File Size : 33,70 MB
Release : 1961
Category : Fly ash
ISBN :
Author : Donald J. Janssen
Publisher : RILEM Publications
Page : 318 pages
File Size : 46,95 MB
Release : 2002
Category : Concrete
ISBN : 9782912143310