Early age strength and workability of slag pastes activated by sodium silicates

Magazine of Concrete Research - Tập 53 Số 5 - Trang 321-326 - 2001
Frank Collins1, Jay Sanjayan2
1Monash University, Clayton, Victoria 3168, Australia
2Currently working at Maunsell McIntyre Level 9, 161 Collins Street, Melbourne, Victoria 3000, Australia

Tóm tắt

This article reports the results of an investigation on the activation of blast furnace slag with emphasis on the achievement of equivalent one-day strength to Portland cement at normal curing temperatures and reasonable workability. The effects of varying dosages of sodium silicate activators are discussed in terms of strength of mini cylinders and also workability by the mini slump method. The results are mainly based on pastes but comparisons are also made with mortar and concrete results. The effects of preblended gypsum dosage within the slag, as well as the effect of ultra fine slag on workability are reported. The results of trials with various water reducing admixtures and superplastisers and their effects on strength and workability are reported.

Từ khóa


Tài liệu tham khảo

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Thông tin
Thông tin xuất bản

Magazine of Concrete Research

Tập 53 Số 5

321-326

Thông tin tác giả