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Effect of Curing Age on High-Strength Concrete at Low ...

1995-8-1  This investigation deals with the effect of curing age on the strength development of high-strength concrete containing silica fume and fly ash and exposed to cold temperatures. Tests were performed on three sets of specimens, having initial curing

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Effect of Curing Age on High-Strength Concrete at Low ...

Effect of Curing Age on High-Strength Concrete at Low Temperatures (Hussein Marzouk, 1995),paper investigates the effect of curing age on the strength

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EFFECT OF CURING AGE ON HIGH-STRENGTH CONCRETE

EFFECT OF CURING AGE ON HIGH-STRENGTH CONCRETE AT LOW TEMPERATURES. An investigation was conducted to study the effect of curing age on the strength development of high-strength concrete containing silica fume and fly ash and exposed to cold temperatures. Three sets of specimens were tested having initial curing ages of 1, 14, and 28 days at ...

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(PDF) Curing Effects on High-Strength Concrete Properties

2019-3-6  The effects of hot and dry environments on high-strength concrete with different water/binder ratios (0.30, 0.35, and 0.40), using (30%) fly ash for all mixes, and (0%, 5%, and 10%) silica fume ...

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Effect of Curing Temperature Histories on the Compressive ...

Concrete produced using the type I mixture achieved the design strength of 42 MPa at the age of 28 days regardless of curing history, whereas the 28-day compressive strength of concrete of the type II mixture, except for concrete cured under the hot temperature condition, was slightly lower than the design strength of 65 MPa, as listed in Table 3.

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Research Article Effect of Curing Temperature Histories

2019-7-31  Research Article Effect of Curing Temperature Histories on the Compressive Strength Development of High-Strength Concrete Keun-HyeokYang, 1 Jae-SungMun, 2 andMyung-SugCho 3 Department of Plant Architectural Engineering, Kyonggi University, Suwon, Gyonggi-do -

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The effects of fibres on the shrinkage of high-strength ...

2016-7-1  Lura et al. have studied the effect of curing temperature on autogenous shrinkage of high performance concretes. Their results show that the curing temperature has an important effect on the development of shrinkage.

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Curing of High Performance Concrete - Methods and

Method of curing has similar effect on HPC both for creep and shrinkage of concrete, which are again influenced by the type and duration of curing. Overall, considering the above, a curing duration of 7 to 10 days seems to be necessary for HPC though curing duration of about 1-2 days could be sufficient from strength gaining.

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The Influence of Casting and Curing Temperature on the ...

2014-9-29  KEYWORDS: Casting temperatures,curing compressive strength, final set,initial slump, temperature effects. ABSTRACT: Concretes, made with two different cements, were cast in the laboratory at temperatures of 10,23 and 32°C (50, 73, and 90”F). The concrete mix design was held constant for each cement used in the study. Fresh properties,

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Curing of High Performance Concrete - Methods and

Method of curing has similar effect on HPC both for creep and shrinkage of concrete, which are again influenced by the type and duration of curing. Overall, considering the above, a curing duration of 7 to 10 days seems to be necessary for HPC though curing duration of about 1-2 days could be sufficient from strength gaining .

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Efficiency of curing on partially exposed high-strength ...

2002-6-1  3.2. Mixing, casting, and curing. The concrete, in batch of 50 kg, was mixed in a laboratory Pan-type mixer for a period of 3 min. In the preparation of the specimens, 100-mm 3 molds were used. A water–cement ratio (w/c) of 33% was chosen to obtain a desired concrete mix of an average 28 days compressive strength of 60 MPa and above.

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Concrete Maturity Method Using Variable Temperature

The maturity method is used to estimate the effects of time and temperature on the strength development of concrete. This paper shows how variable curing temperatures affect strength development for both normal and high-strength concrete using the maturity concept.

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Role of Concrete Curing - Portland Cement Association

Role of Concrete Curing. Curing plays an important role on strength development and durability of concrete. Curing takes place immediately after concrete placing and finishing, and involves maintenance of desired moisture and temperature conditions, both at

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Effects of Curing Age and Fiber Volume Fraction on

2016-8-31  This paper describes the effects of both curing age and fiber volume fraction on flexural behavior of high-strength steel fiber-reinforced concrete (SFRC). The SFRCs used in this study were reinforced with hooked steel fibers at 0.5, 1.0 and 1.5% volume fraction.

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Concrete Compressive Strength Variation with Time - The ...

The age of concrete structures have lots to do with its strength and durability properties. Understanding the strength-time relationship of concrete helps The age of concrete structures have lots to do with its strength and durability properties. Understanding the strength-time relationship of concrete structures helps to know the effect of loading at a later age.

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The Influence of Casting and Curing Temperature on the ...

2014-9-29  KEYWORDS: Casting temperatures,curing compressive strength, final set,initial slump, temperature effects. ABSTRACT: Concretes, made with two different cements, were cast in the laboratory at temperatures of 10,23 and 32°C (50, 73, and 90”F). The concrete mix design was held constant for each cement used in the study. Fresh properties,

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Curing of Concrete - ccaa.au

2018-10-11  Page of 7 > curing of ncreteco n Curing by preventing excessive loss of moisture from the concrete: either by > leaving formwork in place > 20covering the concrete with an impermeable membrane after the formwork has been removed > by the application of a suitable chemical curing agent (wax etc) > or by a combination of such methods n Curing by continuously wetting the exposed

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Low Concrete Cylinder Strength — What, why, how ...

2021-8-16  Standard Specification for Structural Concrete, ACI 301, American Concrete Institute, Farmington Hills, MI. In-Place Concrete Strength Evaluation-A Recommended Practice. NRMCA Publication 133, NRMCA, Silver Spring, MD. Effect of Curing Condition on Compressive Strength of Concrete Test Specimens, NRMCA Publication 53, NRMCA Silver Spring, MD.

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Effect of Curing Methods on Early-Age and Drying

2018-12-10  The effect of curing conditions on the early-age properties and long-term durability of HPC is not fully understood. There is a need to expand the knowledge of early-age properties and of the effect of pozzolanic material (like silica fume and fly ash) on drying shrinkage.

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Curing of High Performance Concrete - Methods and

Method of curing has similar effect on HPC both for creep and shrinkage of concrete, which are again influenced by the type and duration of curing. Overall, considering the above, a curing duration of 7 to 10 days seems to be necessary for HPC though curing duration of about 1-2 days could be sufficient from strength gaining .

Get Price

Optimization of steam-curing regime for high-strength ...

2018-11-1  Limited work has been done to investigate the effect of steam-curing parameters on strength development of high-strength SCC. This paper reports the results of work under-taken to evaluate the effect of the steam-curing regime on mechanical properties for SCC with design compressive strengths of 60 and 80 MPa (8700 and 11,600 psi). The

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Effect of Curing Methods on Density and Compressive ...

2013-6-29  Effect of Curing Methods on Density and Compressive Strength of Concrete ... 2006). If a concrete is not well cured, particularly at the early age, it will not gain the required properties at desired level due to a lower degree of hydration, and would suffer from irreparable loss (Ramezanianpour and ... of curing concrete.

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Concrete Compressive Strength Variation with Time - The ...

The age of concrete structures have lots to do with its strength and durability properties. Understanding the strength-time relationship of concrete helps The age of concrete structures have lots to do with its strength and durability properties. Understanding the strength-time relationship of concrete structures helps to know the effect of loading at a later age.

Get Price

Effects of Nano-CaCO3 on the Compressive Strength and ...

In this paper, effects of nano-CaCO3 on compressive strength and Microstructure of high strength concrete in standard curing temperature(21±1°C) and low curing temperature(6.5±1°C) was studied. In order to improve the early strength of the concrete in low temperature, the early strength agent calcium nitrite was added into. Test results indicated that 0.5% dosage of nano-CaCO3 could ...

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Curing Concrete, Chapter 12 - Memphis

2021-8-9  With proper curing, concrete becomes stronger, more impermeable, and more resistant to stress, abrasion, and freezing and thawing. The improvement is rapid at early ages but continues more slowly thereafter for an indefinite period. Fig. 12-2 shows the strength gain of concrete with age for different moist curing periods and Fig. 12-3 shows

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Effect of Curing Methods on Early-Age and Drying

2018-12-10  The effect of curing conditions on the early-age properties and long-term durability of HPC is not fully understood. There is a need to expand the knowledge of early-age properties and of the effect of pozzolanic material (like silica fume and fly ash) on drying shrinkage.

Get Price

Low Concrete Cylinder Strength — What, why, how ...

2021-8-16  Standard Specification for Structural Concrete, ACI 301, American Concrete Institute, Farmington Hills, MI. In-Place Concrete Strength Evaluation-A Recommended Practice. NRMCA Publication 133, NRMCA, Silver Spring, MD. Effect of Curing Condition on Compressive Strength of Concrete Test Specimens, NRMCA Publication 53, NRMCA Silver Spring, MD.

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Concrete early-age strength monitoring using embedded ...

2006-11-2  The temperature effect is an important phenomenon of the concrete hydration process. Some early-age estimation methods of concrete strength are based on hydration heat. A literature review of hydration-heat-based strength monitoring methods has already been included in this paper.

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Alomaishi Creep of High Strength Concrete

2020-3-16  sity of normalweight aggregate concrete when estimating E c. These are generally assumed as 0.145 kip/ft3 (2320 kg/m 3) for cast-in-place concrete and 0.150 kip/ft (2400 kg/m3) for precast concrete. However, concrete with relatively high strength has a low water-cement ratio and a relatively high density. Russell9 has developed a best-fit re-

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