natural anhydrite as cement retarder
Alternative calcium sulfate-bearing materials as cement
2004年11月1日 The experimental data conclude that natural anhydrite can be a very efficient retarder of the setting of cement, with no significant change in the physicomechanical properties of the hardened pastes.
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Alternative calcium sulfate-bearing materials as cement retarders ...
2004年11月1日 The study of laboratory-produced cements with a diversified setting retarder composition showed that natural anhydrite is an alternative to gypsum based
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(PDF) Analysis of anhydrite's effects on quality of cement
The experimental data conclude that natural anhydrite can be a very efficient retarder of the setting of cement, with no significant change
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(PDF) Use of inorganic setting retarders in cement industry
2005年2月1日 The experimental data conclude that natural anhydrite can be a very efficient retarder of the setting of cement, with no significant change in the
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Investigations of anhydrite in CFBC fly ash as cement
2013年3月1日 On the basis of these investigations, high content of anhydrite in CFBC ash formed at 850–900 °C is used to replace natural gypsum to act as a retarder in this
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Use of inorganic setting retarders in cement industry
2005年2月1日 Only minimal partial replacement of gypsum by natural anhydrite could prevent cement quality setbacks. Gypsum dehydration and formation of hemihydrate
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Investigations of anhydrite in CFBC fly ash as cement retarders
2013年3月1日 Highlights. Anhydrite in CFBC ash is used as a setting retarder. The overall SO3 content is controlled in blended cement. Anhydrite in CFBC ash is a
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Use of inorganic setting retarders in cement industry
2005年2月1日 Partial replacement of the gypsum with anhydrite is possible for the majority of types of clinker. Hence, anhydrite is used in cements with a low aluminate content
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Synthesis and retarder mechanism study of a novel
Abstract. An amphoteric composite polymer (hereinafter referred to as PAADM) as a high temperature-resistant cement retarder was prepared by in situ intercalated polymerization method with 2-crylamido-2
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Optimization of the activation process for natural anhydrite
Chemical activation of anhydrite is set out exclusively by dosage of activators of different nature: ground granulated blast furnace slag, ground glass residue, gypsum, potassium
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