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influence of temperature on compressive strength of

Influence of Porosity, Degree of Hydration and Effect of ...l

Influence of Porosity, Degree of Hydration and Effect of Temperature on Compressive Strength of OPC Paste. Rodrigo Dejeto. Kiyofumi Kurumisawa. Rodrigo Dejeto. Kiyofumi Kurumisawa. Download with Google Download with Facebook or download with email.

Effects of Fresh Concrete Temperature and Mixing Time on ...l

The effects of fresh concrete mixture temperature and mixing duration on the compressive strength of concrete are obvious areas of concern. It is the intent of this paper to show how the combined effects of mixture temperature and mixture duration can influence the compressive strength of concrete.

Effect of Temperature on Residual Compressive strength of ...l

PDF | The residual compressive strength of concrete made with partial replacement of flyash was investigated to study the influence of high temperature. The parameters involved in the test were ...

EFFECT OF CURING METHODS ON THE COMPRESSIVE …l

EFFECT OF CURING METHODS ON THE COMPRESSIVE STRENGTH OF CONCRETE T. James, A. Malachi, E.W. Gadzama, V. Anametem oka Department of Civil Engineering, Federal University of Technology Yola, Nigeria. aEmail: [email protected] (corresponding author). Abstract Di erent curing methods are usually adopted to evaluate the compressive strength of concrete.

Influence of Bottom Ashes from Biomass on Compressive ...l

The preliminary results of utilization of bottom ash from combustion of biomass for the produce of concrete has been presented. Currently, this waste are deposited in industrial waste landfills. The chemical composition of waste materials was determined using X-ray fluorescence (spectrometer ARL Advant 'XP). Concrete were made using CEM I 42.5 R (Cemex) and sand - gravel mix aggregate.

Effect of High Temperature on Compressive Strength of …l

The influence of the binder material type was significantly decreased at temperature of 1000°C. The strengths and stiffness of high-strength concrete were reduced with the increase in temperature without any threshold temperature level. ... Effect of high temperature on compressive strength of concrete, ...

Influence of Temperature on Workability and Compressive ...l

It was proven that the temperature has a clear effect on workability and compressive strength concrete. Influence on workability can be reduced by selecting the appropriate superplasticizer and ...

Influence of Multiple Methods and Curing Temperatures on ...l

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Influence of temperature on compressive strength ...l

Oct 20, 2019· Similar findings from a series of unconfined compressive strength tests performed on fiber reinforced CPB were reported by Chen et al. . Xue et al. examined the influence of fiber types (such as polypropylene, polyacrylonitrile and glass fibers) on compressive strength of CTB. They found that the reinforcing effect of polypropylene fiber is ...

Effects of Key Factors on Compressive and ... - SpringerLinkl

May 29, 2014· The effect of elevated temperature on the concrete specimens prepared with varying mixture proportions was evaluated by measuring the residual compressive and split-tensile strength. The results indicated an increase in the tensile and compressive strength up to a temperature …

Effect of Curing Temperature Histories on the Compressive ...l

Advances in Materials Science and Engineering is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles in all areas of materials science and engineering. ... 28-day compressive strength according to temperature history. ... the early age of 3 days can be regarded as a critical period in terms ...

Influence of Curing Humidity on the Compressive Strength ...l

S. Chen, H. Wang, J. Zhang, H. Xing, and H. Wang, "Experimental study on low-strength similar-material proportioning and properties for coal mining," Advances in Materials Science and Engineering, vol. 2015, Article ID 696501, 6 pages, 2015. View at Publisher · View at Google Scholar · View at Scopus

Compressive Strength of Metakaolin-Based Geopolymers ...l

The influence of KOH concentration (8 and 12 M) and curing conditions as temperature (40℃ and 60℃), time (7 and 28 days) and relative humidity (85% and 95% RH), on compressive strength of metakaolin-based geopolymers (MK-based GP) was evaluated. Derived from the experimental design technique, and using a factorial design 2K with two replications in the center point, eighteen …

Influence of Curing Temperature on the Compressive ...l

The supposition that curing at cold weather conditions leads to the loss of compressive strength of the high performance concrete was investigated. This paper addresses the results of an extensive experimental study on the compressive strength under cold weather conditions. The specimen was prepared as it's inside 100-mm diameter and 200-mm heights cylindrical were used.

Effect of Air Entrained Concrete on Strength of Concretel

2. Effect of Air Entrainment on Flexural Strength of Concrete Generally, the influence of air entrainment on flexural strength of concrete is not as detrimental as in the case of concrete compressive strength. It is reported that, maximum flexural strength can be achieved even with air contant of 4%.

Influence of environmental temperatures on the concrete ...l

The objective of this work is to study the influence of mixing hour on the properties of concrete, such as workability and compressive strength, under hot and cold weather conditions, with a …

Effect of Duration and Temperature of Curing on ...l

[5, ] studied the influence of 6 curing temperature, curing time and alkaline solution-to-fly ash ratio on the compressive strength. It was reported that both the curing temperature and the curing time influenced the compressive strength. The authors confirmed that the temperature and curing time significantly improves the

Influence of Temperature on Workability and Compressive ...l

Two types of admixtures were used. It was proven that the temperature has a clear effect on workability and compressive strength concrete. Influence on workability can be reduced by selecting the appropriate superplasticizer and cement.

The effect of temperature on strength – porosity ...l

Dependence of compressive strength on heating temperature in shown in Fig. 1.Furthermore, the ratio of strength value after cooling of the sample and its original value (before heat pretreatment) is generally referred to be "residual strength" ratio .These results are represented in Fig. 2.Changes of porosity with temperature of heating are depicted in Fig. 3.

Temperature Effect on Mechanical Properties and Damage ...l

Static and dynamic mechanical properties of concrete are affected by temperature effect in practice. Therefore, it is necessary to investigate the corresponding influence law and mechanism. This paper demonstrates the variation of mechanical properties of concrete at temperatures from −20°C to 60°C. Temperature effects on cube compressive strength, splitting tensile strength, prism ...

Influence of the processing temperature on the compressive ...l

Aug 29, 2014· The dry compressive strength was obtained on the dry cured products. For wet compressive strength, these specimens were immersed in water overnight and measured wet while the wet–dry compressive strength is for immersed specimens dried overnight at 90 °C. 3. Results and discussion 3.1. Influence of processing conditions on the compressive ...

Effect of High Temperatures on Concrete| Concrete ...l

High temperatures also affect the compressive strength of concrete. Above 212º F, the cement paste begins to dehydrate (loses chemically combined water of hydration), which gradually weakens the paste and paste-aggregate bond. The temperature that concrete has reached often can be determined by observing color changes in the aggregate.

3 Mechanical Properties 3 1 Tensile Strengthl

3・2 Compressive Strength The compressive strength of Iupilon / NOVAREX is 74~88Mpa (750 ~ 900kgf/cm2) and modulus of elasticity is 1.7 ~1.9Mpa (17×103 ~19×103kgf/cm2). Also, the rate of deformation at yield is 8 ~ 10%. The relation between compressive strength, modulus of elasticity and temperature of Iupilon /

Impact of High Temperature on the Compressive Strength of ECCl

The influence of high temperature exposure on the residual compressive strength is not prominent up to 400°C with the mean compressive strength decreased by 32% after exposure to 400°C. This might be due to the less sensitivity of compressive strength to minor microcracks.

The effect of temperature on the compressive strength of ...l

The crushing strength of concrete at temperatures up to 600°C was independent of the water/cement ratio used but was influenced by the aggregate/cement ratio. Concrete specimens loaded to produce normal design compressive stress during the period of heating showed less reduction in strength than specimens without imposed load.

Influence of temperature in the evolution of compressive ...l

Oct 15, 2016· This research studies the influence of temperature on the evolution of compressive strength and on its correlations with the ultrasonic pulse velocity in concretes and eco-concretes, with a focus on the ages between 1 and 28 days.

Effect of temperature on compressive and tensile strengths ...l

Effect of temperature on compressive and tensile strengths of salt Tanapol Sriapai, Chaowarin Walsri, Kittitep Fuenkajorn Geomechanics Research Unit, Institute of Engineering, Suranaree University of Technology, University Avenue, Muang District, Nakhon Ratchasima 30000 Thailand Corresponding author, e-mail:[email protected] Received 27 Dec 2011

The effect of temperature on the compressive strength of ...l

Influence of the type and quantity of polyolefin fibers on the strength properties (compression strength, tensile strength in bending, strength in uniaxial tension), the deformation properties ...

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