Durability of lightweight concrete : Phase II : wetting and drying tests, Phase III : freezing and thawing tests.
-
1966-12-01
Details:
-
Alternative Title:Durability of lightweight concrete : Phase II : wetting and drying tests, Phase III : freezing and thawing tests : Louisiana highway research.
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:This report describes a laboratory research program on the durability of lightweight concrete. Two phases of a three phase study are covered by this report, while the remaining phase is still under study. The two phases being reported are Phase II - Wetting and Drying Tests of Lightweight Concrete and Phase III - Freezing and Thawing Tests of Lightweight Concrete.
The testing program covered three sources of lightweight aggregate and one source of gravel and sand. The tests consisted of subjecting specimens made from concrete mixes containing various cement contents and aggregate gradations, with the moisture condition of the aggregates varied, to rapid freezing in air and thawing in water to determine freeze and thaw durability and to repeated cycles of submerging in water and drying in an oven for wetting and drying durability. In addition, complete physical tests were run on the aggregates such as, gradation, unit weight, abrasion and soundness loss.
The results of the freezing and thawing tests indicates that the lightweight concrete mixes were more resistant to freeze and thaw damage than the sand and gravel mix used as reference in this study. The results of the wetting and drying tests were not as clearly defined, with one source of lightweight aggregate performing better than the reference sand and ravel mix, while the other two sources of lightweight aggregate were less durable.
It should be pointed out that the tests results received from these studies are applicable only to the material sources which were studied.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
File Type:
Supporting Files
-
No Additional Files
More +