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Keywords: slump loss
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Journal Articles
Publisher: ASTM International
Article Type: Research-Article
Cement, Concrete & Aggregates. June 2000, 22(1): 10–15.
Published Online: June 1, 2000
... sulfate appeared to be a practical method to solve the slump loss problem of these superplasticized cement pastes and concretes. The addition of sodium sulfate between 0.2 to 0.8% (or at a Na 2 O eq. of 0.10 to 0.35%) significantly reduces the rate of the slump loss and maintains a high slump value over...
Journal Articles
Publisher: ASTM International
Article Type: Research-Article
Cement, Concrete & Aggregates. December 1998, 20(2): 235–240.
Published Online: December 1, 1998
... of 20 cm, and almost no slump loss in 2.5 h after mixing, as well as good freeze-thaw durability. The paper describes in detail the mix proportions, the method to control slump loss, and the related mechanical properties. Naiqian Feng1 and Qingfeng Zhuang1 Two-Hour Zero Slump Loss, High-Strength...
Journal Articles
Publisher: ASTM International
Article Type: Technical Notes
Cement, Concrete & Aggregates. January 1991, 13(2): 125–129.
Published Online: January 1, 1991
... of Set-Retarded Concrete in Hot Weather," Cement, Concrete, and Aggregates, CCAGDP, Vol. 13, No, 2, Winter t991, pp. 125-129. investigation was 32°C (90°F), and the maximum time range for the slump loss observations was 120 to 140 rain. On the other hand, field experience under hot weather con- ABSTRACT...
Journal Articles
Publisher: ASTM International
Article Type: Research-Article
Cement, Concrete & Aggregates. July 1989, 11(1): 30–39.
Published Online: July 1, 1989
... water and cement contents by 8 to 9%. Second generation high-range water-reducing admixtures (HRWR) were used to reduce cement and water contents by 15 to 16%. Testing included slump loss, air loss with time, setting time, and bleeding. Similar tests were carried out on flowing concretes, where cement...
Journal Articles
Publisher: ASTM International
Article Type: Research-Article
Cement, Concrete & Aggregates. January 1987, 9(2): 101–112.
Published Online: January 1, 1987
... with additions of fly ash up to 50% by weight of cement. In the freshly mixed state, the effects of the fly ash are to reduce the initial water demand, increase the dosage of air-entraining admixture required for the specified air content, and reduce the rate of slump loss after addition of superplasticizer...
Journal Articles
Publisher: ASTM International
Article Type: Research-Article
Cement, Concrete & Aggregates. July 1984, 6(1): 38–42.
Published Online: July 1, 1984
..., silica fume, resistance to freezing and thawing, slump loss, air loss, cement equivalent factor, substitution and (336 Co <_ 672 lb/yard 3) S _< x _< 10% Silica fume is a new promising pozzolanic material that is beginning to be used by the concrete industry [1-3]. Although silica fume has been added...