International Concrete Abstracts Portal

Showing 1-5 of 21 Abstracts search results

Document: 

SP62-20

Date: 

January 1, 1979

Author(s):

R.H. Mills and T.M. Meisner

Publication:

Symposium Papers

Volume:

62

Abstract:

This paper describes a study of the use of Superplasticizers in concrete reinforced with alkali resistant, chopped glass fibres. It was possible to obtain fibre loadings ranging from 1 to 8 per cent by volume, resulting in flexural strengths of up to 70 Mpa. . .Major considerations in this application are the regulation of matrix stiffening time and prevention of aggregate segregation.

DOI:

10.14359/17735


Document: 

SP62-15

Date: 

January 1, 1979

Author(s):

J.J. Brooks, P.J. Wainwright, and A.M. Neville

Publication:

Symposium Papers

Volume:

62

Abstract:

Strength, elasticity, durability, creep and shrinkage of concretes with and without a superplasticising admixture have been compared over a period of one year.

DOI:

10.14359/17730


Document: 

SP62-16

Date: 

January 1, 1979

Author(s):

Mario Collepardi and Mario Corradi

Publication:

Symposium Papers

Volume:

62

Abstract:

Two superplasticizers, both based on naphthalene-sulphonated formaldehyde condensed resin, were used to prepare concretes with three types of portland cement, two cement contents, two types of aggregates, cured at room temperature and steam cured.

DOI:

10.14359/17731


Document: 

SP62-17

Date: 

January 1, 1979

Author(s):

R.C. Valore, W. Kudrenski, and D.E. Gray

Publication:

Symposium Papers

Volume:

62

Abstract:

Functional water-reducing admixtures provided water reduction up to 30 percent in portland cement-fly ash concretes with binder contents of 740-770 pcy (440-455 kg/m3), calcareous sand, and dolomitic limestone coarse aggregates.

DOI:

10.14359/17732


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


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