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Showing 1-5 of 15 Abstracts search results

Document: 

SP69

Date: 

August 1, 1981

Author(s):

Editors: David W. Fowler and Lawrence E. Kukacka

Publication:

Symposium Papers

Volume:

69

Abstract:

SP-69 A selection of topics covering basic development and applications of polymers in concrete. Contains 14 papers from a 1980 symposium on this subject. Research projects, special construction uses, industrial applications, performance studies, and types of polymer admixtures are reported.

DOI:

10.14359/14121


Document: 

SP69-13

Date: 

August 1, 1981

Author(s):

B. W. Staynes

Publication:

Symposium Papers

Volume:

69

Abstract:

Epoxide resin concrete produced by vacuum impregnation of a prepacked aggregate has handling properties and stiffness (40 GN/m 5 reatly improved at 70 C) when compared with conventionally mixed and placed epoxide resin concrete. This material has been developed for superconducting turbogenerators, but with its improved qualities coupled with high strength (150 MN/m ), resistance to aggressive environments, impervious nature, low shrinkage and electrical resistance a wide range of applications is forecast.

DOI:

10.14359/6388


Document: 

SP69-12

Date: 

August 1, 1981

Author(s):

Y. Ohama and K. Demura

Publication:

Symposium Papers

Volume:

69

Abstract:

The objective of this study was to find an appropriate method of evaluating mold-releasability ofmold-releasingagents for polyester resin concrete. A tension or shearing test involving resin concrete cast in thin frames on steel plates coated with mold-releasing agents was selected as an appropriate method. BY apply- ing this method, 17 commercially available mold-releasing agents were tested and evaluated for mold-releasability. The effect of vibrating compaction on the mold-releasability was also examined. It is concluded from the results that the mold-releasability of silicone and fluorine-containing agents is excellent, and that generally it is considerably affected by vibrating compaction.

DOI:

10.14359/6387


Document: 

SP69-11

Date: 

August 1, 1981

Author(s):

R. E. Weyers, P. D. Cad, P. R. Blankenhorn, and L. R. Stover

Publication:

Symposium Papers

Volume:

69

Abstract:

Polymer impregnated concrete (PIC) was overlaid with a low slump dense concrete (LSDC) or a latex modified concrete (LMC). Flexure strength, compressive strength, and freeze-thaw durability data were obtained on the composite specimens. Flexural data indicated a strong bond was established between LSDC, LMC, and PIC. Compressive strength data indicated the bond was weaker for the LMC than the LSDC. Freeze-thaw data showed that a durable bond was established between the PIC and the LSDC whereas the bond failed between the PIC and the LMC.

DOI:

10.14359/6386


Document: 

SP69-10

Date: 

August 1, 1981

Author(s):

Samuel H. Christie III, Roland R. McClain, and James H. Melloan

Publication:

Symposium Papers

Volume:

69

Abstract:

An epoxy resin system has been developed for modificat-ion of concrete providing handling and performance advantages over other polymer types. Description of two applications are pro-vided. Estimated costs of applied epoxy modified concrete are presented.

DOI:

10.14359/6385


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