Strength development of high strength concretes with and without silica fume under the influence of high hydration temperatures

Journal Article · Fri Dec 01 04:00:00 EST 1995 · Cement and Concrete Research

DOI:https://doi.org/10.1016/0008-8846(95)00175-1· OSTI ID:178310

Mak, S L ^[1]; Torii, Kazuyuki ^[2]

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1. CSIRO, Highett, Victoria (Australia). Div. of Building, Construction and Engineering
2. Kanazawa Univ., Kodatsuno, Kanazawa (Japan). Dept. of Civil Engineering

High performance concretes of high compressive strength are finding increasing applications in many fields of construction such as core walls and columns in tall buildings, long-span bridges and marine structures. In thick cross-sections, the high binder contents of some high strength concretes can result in the development of high in-situ temperatures. The combined influence of limited moist curing and high hydration temperatures may significantly influence the progress of hydration. This can affect the long-term development of in-situ strength and other engineering properties. Knowledge of in-situ strength development under these conditions is needed to ensure safe utilization of this new generation of construction materials. This paper presents results of an investigation on the strength development of high strength concretes with and without silica fume subjected to high in-situ temperature conditions. A temperature match conditioning (TMC) system was developed and used to simulate the semi-adiabatic temperature development within medium sized high strength concrete columns. The results of this investigation show that in-situ temperatures of up to 70 C significantly increased the 7-day strength of a high strength silica fume concrete. Although no strength regression was observed up to 1 year, the silica fume concrete subjected to high early temperatures showed significantly lower strengths when compared to concrete cured at standard temperature. For the silica fume concrete subjected to high early temperatures, non-evaporable water contents suggest little additional hydration beyond 3 days.

• OSTI ID: 178310
• Journal Information: Cement and Concrete Research, Journal Name: Cement and Concrete Research Journal Issue: 8 Vol. 25; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
CHEMICAL COMPOSITION
COMPRESSION STRENGTH
CONCRETES
CURING
HEAT TREATMENTS
REACTION HEAT
SILICON OXIDES
WASTE PRODUCT UTILIZATION