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International Concrete Abstracts Portal

Showing 1-5 of 21 Abstracts search results

Document: 

SP62-19

Date: 

January 1, 1979

Author(s):

N.P. Mailvaganam

Publication:

Symposium Papers

Volume:

62

Abstract:

The trends in the rate of slump loss in superplasticized concrete due to the variation in temperature, concrete consistency, cement content and type, time of conventional admixtures in conjunction with the superplasticizer were determined.

DOI:

10.14359/17734


Document: 

SP62-18

Date: 

January 1, 1979

Author(s):

D. Sadagopal, V. Ramakrishnan, William V. Coyle, and C. Besancon

Publication:

Symposium Papers

Volume:

62

Abstract:

This work presents the results of an experimental investigation to develop equations for estimating the potentional strength, modulus of elasticity, dry unit weight and pulse velocity of both regular and superplasticized concrete by using the Accerlerated Curing Method recommend by the American Society for Testing and Materials. A series of 24 concrete mixes (12 control and 12 superplasticized) were tested. The variables used were water-cement ratio, the initial temperature of concrete and air content.

DOI:

10.14359/17733


Document: 

SP62-07

Date: 

January 1, 1979

Author(s):

W.G. Ryan and R.L. Munn

Publication:

Symposium Papers

Volume:

62

Abstract:

Several types of chemical admixtures capable of causing large increases in the workability and consistency of concrete have been extensively tested in the laboratory. This research has led to a number of successful field applications for superplasticised concrete in both ready mixed and prescast concrete in Australia since 1974.

DOI:

10.14359/17722


Document: 

SP62-08

Date: 

January 1, 1979

Author(s):

W.F. Perenchio, D.A. Whiting, and D.L. Kantro

Publication:

Symposium Papers

Volume:

62

Abstract:

Concretes with nomial cement contents of 376, 517, and 658 lb. per cu.yd. at slumps of 2 to 3 inches were prepared. Control concretes and concretes containing four proprietary superplasticizers at the manufacturer's recommended dosages were included.

DOI:

10.14359/17723


Document: 

SP62-14

Date: 

January 1, 1979

Author(s):

P.T. Seabrook and V.M. Malhotra

Publication:

Symposium Papers

Volume:

62

Abstract:

Part I of the paper reports results of an investigation undertaken to evaluate the degree to which the 7- and 28-day strengths of concrete test cylinders containing superplasticizing admixtures could be estimated by the modified boiling (accelerated curing) tests procedure. . .Part II of the paper reports the results of an investigation to determine the effect of repeated doses of superplasticizers on the properties of concrete.

DOI:

10.14359/17729


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