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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 21 Abstracts search results

Document: 

SP62

Date: 

January 1, 1979

Author(s):

Editor: V.M. Malhotra

Publication:

Symposium Papers

Volume:

62

Abstract:

SP62 This collection of 20 papers represents the most comprehensive work to date on one of the industry’s newest developments-the high-range water-reducing admixtures called superplasticizers. In clear, understandable terms, it answers important questions and collects information from an international symposium on the applications, advantages, and limitations of superplasticized concrete. This fact-filled volume covers such topics of vital interest as what superplasticizers mean to you and the concrete industry. How superplasticizers can help you. And under what circumstances are they at their best. In-depth case histories of current world-wide applications show you how superplasticizers actually work.

DOI:

10.14359/14114

Document: 

SP62-12

Date: 

January 1, 1979

Author(s):

V.M. Malhotra and D. Malanka

Publication:

Symposium Papers

Volume:

62

Abstract:

Superplasticizers are new types of water reducers which when added to concrete, cause large increases in its workability. The introduction of these water reducers has opened up new possibilites for concrete in construction. This report gives results of a laboratory investigation to determine the performance of superlasticizers in high-strength concrete with a water-cement ratio of 0.42.

DOI:

10.14359/17727

Document: 

SP62-13

Date: 

January 1, 1979

Author(s):

P.K. Mukherjee and B. Chojnacki

Publication:

Symposium Papers

Volume:

62

Abstract:

A superplasticizing admixture of the sulphonated melamine formaldehyde condensate type was tested in the laboratory for its effect on concrete mixes with a nominal slump of 3 in. (75 mm) and 415 kg/m3, respectively). A total of nine mixes were prepared. All mixes contained an air entraining admixture.

DOI:

10.14359/17728

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

Document: 

SP62-05

Date: 

January 1, 1979

Author(s):

Kai Holbek and Janis I. Skrastins

Publication:

Symposium Papers

Volume:

62

Abstract:

The main reasons for using superplasticizers in precast concrete are to improve the physical properties of either the fresh or hardened concrete, to faciliate the placement and compaction of concrete in intricate moulds, to obtain better finishes or to reduce the costs of these operations. The examples described in this paper illustrate the uses of superplasticizers for more than one of these reasons.

DOI:

10.14359/17720

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