Early and Later Age Properties of Temperature Cycled Slag-OPC Concretes


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Title: Early and Later Age Properties of Temperature Cycled Slag-OPC Concretes

Author(s): P. J. Wainwright and J. J. A. Tolloczko

Publication: Special Publication

Volume: 91


Appears on pages(s): 1293-1322

Keywords: Keywords: adiabatic conditions; blast furnace slag; blended cements; cement content; compressive strength; concretes; modulus of elasticity; portland slag cements; temperature rise (in concrete); tensile strength.

Date: 2/1/1986

The paper presents the results of a laboratory investigation into the effects of subjecting concretes (made from OPC and blends of OPC and slag) to adiabatic temperature cycles. The adiabatic cycle is similar to that which concrete at the centre of a large mass would undergo during the first few days after placing. Concretes with two different cement contents (300, 450 kg/m3) were made with slag replacement levels of 50% and 70% by mass of cementitious material. The properties investigated were: adiabatic temperature rise, compressive and tensile strength development and modulus of elasticity. Tests were carried out at ages between 1 day and 6 months.