International Concrete Abstracts Portal

International Concrete Abstracts Portal

The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

Showing 1-5 of 11 Abstracts search results

Document: 

SP39-09

Date: 

January 1, 1973

Author(s):

N.G. Zoldners, H.S. Wilson

Publication:

Symposium Papers

Volume:

39

Abstract:

Two series of lightweight concrete mixes made with expanded shale and slag aggregates were prepared for heat exposures between 300 C and 1000 C (572 F to 1832 F)/ To some concretes microfillers such as fly ash, silica flour, and calcined shale dust were added to replace 25 and 40% of the portland cement in the binder.

DOI:

10.14359/17828


Document: 

SP39-10

Date: 

January 1, 1973

Author(s):

T.Z. Harmathy

Publication:

Symposium Papers

Volume:

39

Abstract:

A review is presented of the work carried out in the author's laboratory over the past ten years concerning the fire endurance of concrete masonry walls. After defining fire endurance, the author surveys the material properties of concrete and the geometric features of the component units that affect the performance of concrete masonry walls in fire.

DOI:

10.14359/17829


Document: 

SP39-02

Date: 

January 1, 1973

Author(s):

Brian B. Hope, Peter J. Quelch

Publication:

Symposium Papers

Volume:

39

Abstract:

The effect of freezing temperatures on the compressive strength and ultrasonic pulse velocity of vacuum processed and nonprocessed concrete was investigated for two concretes with initial water/cement ratios of .71 and .45.

DOI:

10.14359/17821


Document: 

SP39-03

Date: 

January 1, 1973

Author(s):

V.M. Malhotra, Carl Berwanger

Publication:

Symposium Papers

Volume:

39

Abstract:

This paper reports the relationships of the strength of standard laboratory-cured cylinders to the strength of concrete in 24x24x66-inch (0.61 x 0.61 x 1.68-meter) columns and 24 x 24 x 8-inch (61 x 61 x 20-cm) slabs to that of cylinders cured under exposed winter conditions.

DOI:

10.14359/17822


Document: 

SP39-04

Date: 

January 1, 1973

Author(s):

J.N. Mustard

Publication:

Symposium Papers

Volume:

39

Abstract:

This paper discusses winter curing of concrete in the light of the New Canadian Standard. The effect of freezing fresh concrete at various ages is dealt with in some detail and tests results are given to illustrate the absolute minimum protection period and minimum protection methods.

DOI:

10.14359/17823


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