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Author : William O. Tynes,James E. McDonald
Publisher : Unknown
Page : 52 pages
File Size : 48,7 Mb
Release : 1968
Category : Aggregates (Building materials)
ISBN : UOM:39015086518993
Author : William O. Tynes,James E. McDonald
Publisher : Unknown
Page : 0 pages
File Size : 54,6 Mb
Release : 1968
Category : Aggregates (Building materials)
ISBN : OCLC:227512940
The objectives of this investigation were: to establish whether variations in manufacturing procedures may be expected to include some which affect the frost resistance of preplaced-aggregate concrete, to identify such procedures if they exist, to determine if the hardened concrete can be rendered more resistant to freezing and thawing by the addition of an air-entraining admixture (AEA) to the grout mixture, and to make appropriate recommendations for means by which any adverse effects encountered may be avoided in practice. Results indicate that the resistance of conventional preplaced-aggregate concrete at an age of 28 days to accelerated freezing and thawing is much less than that of concrete containing AEA both conventionally mixed and preplaced. Apparently, this relatively low resistance of the preplaced-aggregate concrete containing no added AEA was due chiefly to the low air content, which was contributed to by the relatively small amount of fines in the mixture. The results of tests of the preplaced-aggregate concrete containing AEA for resistance to freezing and thawing were approximately the same as concrete conventionally mixed containing AEA; the addition of AEA increases these values regardless of delay time between mixing and pumping of grout. The air-void spacing-factor values of the preplaced-aggregate hardened-concrete specimens containing similar amounts of entrained air as the conventionally prepared specimens indicated that the concrete would be durable. The durability test data agree with this prediction. (Author).
Author : Bryant Mather
Publisher : Unknown
Page : 30 pages
File Size : 53,9 Mb
Release : 1965
Category : Aggregates (Building materials).
ISBN : UOM:39015086518795
Author : Anonim
Publisher : Unknown
Page : 52 pages
File Size : 49,6 Mb
Release : 1968
Category : Hydraulic engineering
ISBN : UFL:31262093556123
Author : Waterways Experiment Station (U.S.)
Publisher : Unknown
Page : 328 pages
File Size : 53,7 Mb
Release : 1964
Category : Concrete
ISBN : UCR:31210020120869
Author : Waterways Experiment Station (U.S.),U.S. Army Engineer Waterways Experiment Station
Publisher : Unknown
Page : 338 pages
File Size : 55,5 Mb
Release : 1978
Category : Grouting
ISBN : UOM:39015086519124
Author : Anonim
Publisher : Unknown
Page : 336 pages
File Size : 40,8 Mb
Release : 1978
Category : Grouting
ISBN : MINN:31951002841892L
Author : United States. Army. Corps of Engineers
Publisher : Unknown
Page : 238 pages
File Size : 53,5 Mb
Release : 1968
Category : Electronic
ISBN : UCR:31210023545369
Author : United States. Superintendent of Documents
Publisher : Unknown
Page : 1464 pages
File Size : 48,8 Mb
Release : 1966
Category : Government publications
ISBN : WISC:89035089051
Author : U.S. Army Engineer Waterways Experiment Station
Publisher : Unknown
Page : 430 pages
File Size : 51,6 Mb
Release : 1976
Category : Hydraulic engineering
ISBN : MINN:31951D00281169K
Author : Anonim
Publisher : Unknown
Page : 62 pages
File Size : 52,6 Mb
Release : 1969
Category : Electronic
ISBN : MINN:31951D03782824M
Contents: Reports from U.S. Army Engineer Waterways Experiment Station and St. Paul District Hydraulic Laboratory; Reports published and distributed by Waterways Experiment Station for other Corps of Engineers agencies; Engineer manuals.
Author : Anonim
Publisher : Unknown
Page : 128 pages
File Size : 43,5 Mb
Release : 1969
Category : Government publications
ISBN : UCR:31210023919119
Author : FIB – International Federation for Structural Concrete
Publisher : FIB - Féd. Int. du Béton
Page : 920 pages
File Size : 53,8 Mb
Release : 2016-08-01
Category : Technology & Engineering
ISBN : 9784990914806
Author : Coastal Engineering Research Center (U.S.)
Publisher : Unknown
Page : 436 pages
File Size : 54,6 Mb
Release : 1983
Category : Coasts
ISBN : UIUC:30112008445584
Author : R Auberg,M.J. Setzer
Publisher : CRC Press
Page : 400 pages
File Size : 49,5 Mb
Release : 2004-03-01
Category : Architecture
ISBN : 9780203627327
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.