effect of compressive strength in concrete

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  • The Effect of Aggregate Size on the Compressive Strength

    An experiment was conducted to determine the effect of aggregate size on the compressive strength of concrete. The experiment had three treatments, which were the aggregate sizes (10 mm, 12 mm andEffect of Cube Size on the Compressive Strength of Concrete,Effect of Cube Size on the Compressive Strength of Concrete 1Misba Gul, 1Assistant Professor 1Department of Civil Engineering 1Islamic University of Science & Technology, Awantipora, India. _____ Abstract In this paper the influence of the size of the cube specimens on the compressive strength of concrete has been investigated.

  • Effect of aggregate type on Compressive strength of concrete

    Effect of aggregate type on Compressive strength of concrete Article (PDF Available) in International Journal for Computational Civil and Structural Engineering 2(3) · February 2012 with 8,594 ReadsEffect of aggregate type on Compressive strength of concrete,Effect of aggregate type on Compressive strength of concrete Abdullahi. M International Journal of Civil and Structural Engineering Volume 2 Issue 3 2012 794 (Olanipekun, Olusola, and Ata 2006; Neville, 1995). This further buttresses the point that the aggregates can be used for construction work.

  • Effect of Concrete Strength and Slab Thickness on Floor

    Effect of Concrete Strength and Slab Thickness on Floor Strength. By Concrete Construction Staff. Q.: The specification for the floor of a maintenance building called for a 6-inch slab thickness and concrete with a design compressive strength of 3000 psi. The actual average cylinder strength for the floor concrete was 3630 psi.Effect on Compressive Strength of Concrete by Addition of,Abstract- The paper deals with the effects of addition of various proportions of polypropylene fiber on the properties of high strength concrete m20 mixes.An experimental program was carried out to explore its effects on compressive strength under different curing condition. the main aim of the investigation program is to study the effect of

  • Size and Shape Effects on the Compressive Strength of High

    the size and shape effect on compressive tests per-formed on High-Strength Concrete (HSC) specimens. Specifically, we wanted to disclose the influence of the size in cubes and the relationship between com-pressive strength obtained from standard cylinders, ASTM C39 (100 £200mm) and the strength got from cubes.Effect of Rate of Loading on Compressive Strength of Concrete,False strength of concrete proves fatal as it may fail due to various factors in the long terms. Therefore, to ensure the functional performance and safety of structure it is necessary to determine the true strength of concrete. In this project the effect of high rate of loading on compressive strength of concrete has been studied. As it has

  • Effects of Water-Cement Ratios on the Compressive Strength

    and the compressive strengths of both concrete and lateritic concrete mixes were found to increase with age but decrease as the water-cement ratio increases. However, water-cement ratio above 0.65 was observed to have a very significant reduction effect on the compressive strength of the lateritic concrete Effect of nano silica and coir fiber on compressive,Nov 30, 2019· This research investigates the effect of nano silica and coir fiber on compressive strength and abrasion resistance of concrete. In this study, Coir fiber has been added in the concrete with the variation of 0.25%, 0.5%, and 0.75% by the weight of the fine aggregates and 2% and 3% nano silica along with 15% fly ash which has partially replaced cement in the concrete mixture.

  • Shape and size effects on the compressive strength of high

    The experimental program was designed to study the size and shape effect on compressive tests performed on high-strength concrete (HSC) specimens. Specifically, we wanted to disclose the influence of the size in cubes and the relationship between compressive strength obtained from standard cylinders, ASTM C39 (100 × 200 mm) and the strengthEffect of Air Entrained Concrete on Strength of Concrete,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%.

  • Effect of Aggregates On Strength Of Concrete Engineering

    Using higher number of fines modulus without decreasing amount of mixing water, decrease the compressive strength of concrete. Shape And Size Effect On Concrete Strength. Aggregates shape and size has a strong influence on properties of concrete. Rough surface textured particles increase the compressive strength of concrete up to 20-30%EFFECT OF CURING METHODS ON THE COMPRESSIVE ,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.

  • Effect of moisture content on compressive and split

    that the moisture content in concrete does have a significant effect on the compressive strength of concrete, but has a much lesser effect on the split tensile strength. As the specimen degrees of saturation increased, the compressive strength fell. However, at nearly saturated condition, an increase in compressive strength can be found.Effect of Curing Condition on Compressive Strength of Fly,Title: Effect of Curing Condition on Compressive Strength of Fly Ash Geopolymer Concrete. Author(s): Hongen Zhang, Xiaoshuang Shi, Additionally, the compressive strength of the 5HWC series is higher than that of the HSC series but lower than that of the 5HSC series, which indicates that cement will weaken the negative effect of wet curing

  • Effect of High Temperature on Compressive Strength of

    concrete at elevated temperatures. Along with the compressive strength, change in appearance & colour was also noted down. A careful study of these tables & graphs would reveal that, up to 350°C, the fall in compressive strength was negligible at less than 10%. At 500°C, the values of cube compressive strength became consciousAdvances in Materials Science and Engineering,The primary objective of this study is to investigate the effects of cylinder size (150 by 300 mm and 100 by 200 mm) on empirical equations that relate static elastic moduli and compressive strength and static and dynamic elastic moduli of concrete. For the purposes, two sets of one hundred and twenty concrete cylinders, 150 by 300 mm and 100 by 200 mm, were prepared from three

  • Strength of Concrete University of Washington

    on compressive strength of concrete. Compressive Strength of Concrete, f’c Concrete Technology 14 2.4a) Influence of Mineralogy Differences in the mineralogical composition of aggregates affect concrete strength. fc 1000 psi The reason for limestone to produce higher strength is because CaCO3.Ca(OH)2.xH2O is formed at interface in TZ.Effect of aggregate type on Compressive strength of,Figure 6: Compressive strength of concrete The models for compressive strength of concrete as a function of the age at curing for different aggregate types are shown in Figure 6. The regression output is shown in Table 3. For concrete made from quartzite aggregate, the adjusted coefficient of determination (adjusted R2) is very high, about 0.9779.

  • Effect of superplasticizer on the Compressive strength of

    The effect of superplasticizer (Polycarboxylic Ether) on the compressive strength of concrete using different water cement ratio was studied. The superplasticizer was used as an admixture. The superplasticizer was added to the concrete at 0%, 2%, 2.5% and 3.5% by weight of cement and varying water cement ratio of 0.4, 0.45, 0.50 and 0.55.[PDF] Effect of Cylinder Size on the Modulus of Elasticity,The primary objective of this study is to investigate the effects of cylinder size (150 by 300 mm and 100 by 200 mm) on empirical equations that relate static elastic moduli and compressive strength and static and dynamic elastic moduli of concrete. For the purposes, two sets of one hundred and twenty concrete cylinders, 150 by 300 mm and 100 by 200 mm, were prepared from three different

  • Effect Of Different Curing Methods On The Compressive

    The study present the effect of different curing methods on the compressive strength of concrete using Portland cement and finally identifies the most effective curing process for normal concrete. MATERIALS AND METHODS Locally available crushed granite stones and fine aggregate (quartzite sand)were used as coarse and fine aggregate respectively.Effect of superplasticizer on the Compressive strength of,The effect of superplasticizer (Polycarboxylic Ether) on the compressive strength of concrete using different water cement ratio was studied. The superplasticizer was used as an admixture. The superplasticizer was added to the concrete at 0%, 2%, 2.5% and 3.5% by weight of cement and varying water cement ratio of 0.4, 0.45, 0.50 and 0.55.

  • Effect Of Different Curing Methods On The Compressive

    The study present the effect of different curing methods on the compressive strength of concrete using Portland cement and finally identifies the most effective curing process for normal concrete. MATERIALS AND METHODS Locally available crushed granite stones and fine aggregate (quartzite sand)were used as coarse and fine aggregate respectively.Effect of aggregate type on Compressive strength of,Figure 6: Compressive strength of concrete The models for compressive strength of concrete as a function of the age at curing for different aggregate types are shown in Figure 6. The regression output is shown in Table 3. For concrete made from quartzite aggregate, the adjusted coefficient of determination (adjusted R2) is very high, about 0.9779.

  • The effect of temperature on the compressive strength of

    Summary. As part of an investigation on the effect of temperature on the crushing strength of concrete, tests have been carried out using 2 in. diameter by 4 in. long specimens made with ordinary Portland cement, river sand and gravel aggregate, having various mix proportions and water/cement ratios.The Effect of Aggregate Size on The Strength of Concrete,According to the theory of normal concrete compressive strength at the age of 28 days for granite aggregate is 35Mpa [7]. The concrete strength of combine aggregate 10mm and 5mm size can achieve 160Mpa at the age of 28 days [3]. The compressive strength of concrete cubes aggregate size 20mm and 10mm on the 7th days are 25.5Mpa and 16.9Mpa.

  • Effect of Hand Mixing on the Compressive strength of Concrete

    The compressive strength of concrete depends on the aggregate grading, aggregate/cement ratio as well as the water/cement ratio. The freshly mixed concrete should be workable to be properly placed and the hardened concrete needs to be durable and attain a specific compressive strength [1].Effect of temperature on the compressive strength of concrete,The structural performance of reinforced concrete components is affected by aging because changes in mechanical material properties affect structural resistance. One of the few material property parameters that does not decrease with time is the concrete compressive strength. Depending on the concrete mix, the peak compressive strength after several years can be

  • The Effect of Steel Fibers on the Compressive Strength of

    The effect of steel fibers on the static compression strength of concrete and mortar was studied. . .Values for Young's modulus and Poisson's ratio for the vari[PDF] Effect of Cylinder Size on the Modulus of Elasticity,The primary objective of this study is to investigate the effects of cylinder size (150 by 300 mm and 100 by 200 mm) on empirical equations that relate static elastic moduli and compressive strength and static and dynamic elastic moduli of concrete. For the purposes, two sets of one hundred and twenty concrete cylinders, 150 by 300 mm and 100 by 200 mm, were prepared

  • Loading Rate and Strength of Concrete

    In general, strength of concrete means compressive strength and flexure strength.In both cases, load is applied on concrete specimen at certain rate and applied until failure occurs. The range of usual speeds that are applied has significant effect on apparent strength of specimen.What is the effect of using different types of cement on,Sep 04, 2018· The question is not very clear so the answer will be not very pinpointed, I suppose. But let's have a try to convey what you really seek. There are now majorly four

  • Effect of Curing Methods on Density and Compressive

    This study considered the effect of different methods of curing on density and compressive strength of concrete. Concrete cube specimens of mix 1:2:4 were prepared with water-cement ratio of 0.65. The cubes were cured using six methods (air curing, water-submerged curing, spray curing, polythene curing, moist sand curing andCompressive Strength of Lightweight Concrete IntechOpen,Compressive strength and density of LWC are the main points of interest in this chapter. In addition to conventional compression test, a nondestructive test (NDT) method will be used to assess the compressive strength of a variety of lightweight concrete mixes.

  • Effects of Environmental Factors on Concrete Carbonation

    It can be seen from Figure 6 that the compressive strength of concrete decreased with the increase of CO 2 concentration. Under the same test conditions, the influences of the carbonation effect on concrete strength intensified in response to the decreasing strength grade of concrete.,