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DOI http://dx.doi.org/10.1016/S0008-8846(98)00154-9
Title Superplasticized Portland cement: Production and compressive strength of mortars and concrete
Creator/Author Bouzoubaa, N. ; Zhang, M.H. ; Malhotra, V.M. [Natural Resources Canada, Ottawa, Ontario (Canada)]
Publication Date1998 Dec 01
OSTI IdentifierOSTI ID: 323689
Other Number(s)CCNRAI; ISSN 0008-8846
Resource TypeJournal Article
Resource RelationCement and Concrete Research ; VOL. 28 ; ISSUE: 12 ; PBD: Dec 1998
Subject36 MATERIALS SCIENCE ; COMPRESSION STRENGTH; SAMPLE PREPARATION; CONCRETE-PLASTIC COMPOSITES; MORTARS; NAPHTHALENE; PORTLAND CEMENT; GYPSUM; GRINDING; TIME DEPENDENCE
Description/Abstract This paper deals with the effect of intergrinding different percentages of a naphthalene-based superplasticizer with Portland cement clinker and gypsum on the fineness of the product, and on the water requirement and the compressive strength of the mortars made with the superplasticized cement. The properties of the fresh and hardened concrete made with the superplasticized cements were also investigated. The results showed that the intergrinding of a given amount of a naphthalene-based superplasticizer with Portland clinker and gypsum reduced the grinding time required for obtaining the same Blaine fineness as that of the control Portland cement without the superplasticizer. The water requirement of the mortars made with the superplasticized cements was similar to that of the mortars made with the control Portland cements when the same amount of the superplasticizer was added at the mortar mixer; for a given grinding time and a Blaine fineness of{approximately}4500 cm{sup 2}/g, the mortars made with the superplasticized cement had higher compressive strength than those made with the control Portland cement. For a given grinding time or Blaine fineness of cement{ge}5000 cm{sup 2}/g, the slump loss, air content stability, bleeding, autogenous temperature rise, setting times, and compressive strength of the concrete made with the superplasticized cements were generally comparable to those of the concrete made with the control Portland cements when the superplasticizer was added at the concrete mixer.
Country of PublicationUnited States
LanguageEnglish
Formatpp. 1783-1796 ; PL:
System Entry Date2001 May 04

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