Methods for determining the codtent of blast furnace slag (BFS) in blended cements composed of BFS and OPC have been briefly reviewed. A variety of dissolution orocedures were investigated and the results compared critically. Extractions with methanol-salicyclic and/or acetic acid show that these s
General hydration model for portland cement and blast furnace slag cement
β Scribed by G. De Schutter; L. Taerwe
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 755 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0008-8846
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β¦ Synopsis
This paper focusses on the evolution of the heat of hydration of hardening concrete or cement based materials. Based on isothermal and adiabatic hydration tests a new general hydration model is developed, valid both for portland cement and blast furnace slag cement. This hydration model enables the calculation of the heaL production rate as a function of the actual temperature and the degree of hydration,
π SIMILAR VOLUMES
The hydration behaviour of a 1:1 mixture (by mass) of 'Secar 71' refractory aluminous cement and ground granulated blast furnace slag has been studied over a range of temperature using conduction calorimetry, x-ray diffraction and thermal analysis techniques. The initial hydration of the cement pro
The corrosion behavior of reinforcing steel embedded in various slag cement pastes was studied using the galvanostatic polarization technique. The corrosion resistance is aDnreciably affected by the degree of fineness of the dry slag cement. In Dastes produced from high Blaine area cement, the behav
## Abstract One method proposed for utilisation of highβmagnesia Portland cements involves the addition of active siliceous admixtures such as fly ash or ground granulated blastfurnace slag. This addition enables otherwise unsound cements to pass the ASTM autoclave test (C151β74a) for expansion of
This research was devoted to the study of the influence of the developed al~ali-silicate admixture (AS admixture) on mortar properties. The obtained results shown j that the admixture significantly increased the strength of the mortars made from portland cement (PC) and silica fume (SF) or blast fur