Compressive Strength Of Coarse Aggregate

  • EFFECTS OF DIFFERENT SIZES OF AGGREGATES ON …

    distribution of both fine and coarse aggregate on compressive strength are analyzed in this study. Six different sizes of coarse aggregates are used while developing a mix design. The sizes of coarse aggregate are 19 mm, 12.5 mm, 9.5 mm, 6.35 mm 4.75 mm, 2.36 mm and 1.18 mm. Mixtures of local sand and Sylhet ...

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  • A Study of Concrete Made with Fine and Coarse Aggregates ...

    As the grain size effect can be neglected, the compressive strength depends then only on the proportion of the recycled aggregates (fine or coarse) from FCW. As can be seen in Figure 4 , the compressive strength shows only a 15% decrease for 25% of aggregates replacement and 32% decrease for of aggregates replacement.

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  • Factors Affecting Strength of Concrete

    Factors Affecting Strength of Concrete Concrete strength is affected by many factors, such as quality of raw materials, water/cement ratio, coarse/fine aggregate ratio, age of concrete, compaction of concrete, temperature, relative humidity and curing of concrete. Quality …

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  • IMPACT OF COARSE AGGREGATE ON COMPRESSIVE …

    compressive strengths, while in normal-strength concretes; coarse aggregate strength has little effect on compressive strength. While Özturan and Çeçen (2007) compared the effects of limestone and basalt on the compressive strength of high-strength concrete in …

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  • The Effect of Aggregate Size on the Compressive Strength ...

    The concrete made from the 9.5 mm, 13.2 mm and 19.0 mm aggregate sizes had workability (slumps) of 10 mm, 13.5 mm and 20 mm, respectively. The mean compressive strength for the 9.5 mm, 13.2 mm, and...

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  • Effects of Coarse Aggregate Size on the Compressive ...

    Effect of Aggregate Size Distribution on Concrete Compressive Strength. SUST Journal of Science and Technology, Vol. 19, No. 5, 2012; P: 35-39. Yaqub, M. and I. Bukhari. Effect of size of coarse aggregate on compressive of high strength concrete. 31st Conference on Our World in Concrete & Structures. 16 – 17 August 2006, Singapore.

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  • COMPRESSIVE STRENGTH OF RECYCLED AGGREGATE TO …

    Aggregate (RA) on compressive strength of Recycled Aggregate Concrete (RAC) were investigated. RA is used to replace natural aggregate (NA) as coarse aggregate in concrete mixes. This research also covered RAC mixtures at different water-cement ratio (0.4, 0.5, 0.6). foun It wads that RAC had lower compressive strength compared to Natural

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  • Strength Properties of Concrete by Replacing Coarse ...

    Keywords: Coarse Aggregate, Compressive strength, fine aggregate, gabbro concrete. I. INTRODUCTION. Nowadays, as the field of civil engineering have become so innovative hence providing economic constructions and good strength. Use of Igneous rock aggregates in concrete mixes is to develop their physical properties by the properties of Gabbro rock.

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  • Influence of recycled concrete aggregates on strength ...

    Feb 01, 2009· This is because of the angularity of the coarse aggregate and the residual cementation on the surface of the recycled aggregate. Fig. 3 shows the compressive strength test results for testing five specimens of each of the Mix 1 (30 MPa concrete) cases considered in the experiment design (for a total of 20 cylinders).

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  • Compressive Strength - an overview | ScienceDirect Topics

    For a given compressive strength, removal rate is always higher for a concrete made with coarse aggregates. The reasons for this behaviour are already outlined in Section 2.2.2. A strong and coarse concrete enables the formation of rather large radial fractures in the structure.

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  • Effect of recycled coarse aggregate on concrete ...

    Jun 22, 2011· Abstract. The effect of recycled coarse aggregate on concrete compressive strength was investigated based on the concrete skeleton theory. For this purpose, 30 mix proportions of concrete with target cube compressive strength ranging from 20 to 60 MPa were cast with normal coarse aggregate and recycled coarse aggregate from different strength parent concretes.

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  • Effects of Sand Quality on Compressive Strength of ...

    Concrete mix ratio of 1:1.5:3:0.57 (cement:sand:coarse aggregates:water) as it is used for most low rise structural buildings was designed for an expected compressive strength of 25 MPa at 28 days using 20 mm maximum aggregates size and ordinary Portland cement.

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  • 7 Lab Tests on Aggregates to Make Better Concrete for ...

    The aggregate crushing value test indicates the strength of aggregate which is the most essential property of coarse aggregate. The aggregate crushing value provides a relative measure of resistance to crushing under a gradually applied compressive load. For achieving a high quality of pavement, aggregate of higher crushing strength i.e. low ...

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  • The Effect of Aggregate Size on The Strength of Concrete

    size can achieve compressive strength up to 160 Mpa at 28 days [3]. Mineral content in coarse aggregate also influence to the bond strength of the aggregate-concrete mix. Normal concrete compressive strength at 28 days for the granite aggregate is 30 MPa [4]. Aggregate shape and texture can help to improve the

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  • Assessment of Compressive Strength of Concrete Based On ...

    Effects of size distribution of both fine and coarse aggregate on compressive strength were analyzed in this study. Six different sizes of coarse aggregates were used while developing a …

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  • CORRELATION BETWEEN AGGREGATE CRUSHING VALUE …

    coarse aggregates, the variation of aggregate crushing value of different coarse aggregates, strength gain of concrete with time for different coarse aggregates and to establish a relation between aggregate crushing value of coarse aggregate and compressive strength of concrete. In the study, Portland Composite Cement (PCC) has not been used.

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  • Compressive Strength of Concrete | Cube Test, Procedure ...

    Mar 22, 2020· Compressive Strength of concrete is defined as the Characteristic strength of 150mm size concrete cubes @28 days. Compressive strength of Concrete and its importance:- As we all know that concrete is a mixture of sand, cement, and aggregate.

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  • EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON …

    Ruiz (1966) found that the compressive strength of concrete increases with an increase in coarse aggregate content until a critical volume is reached, while Bayasi and Zhou (1993) found little correlation between compressive strength and coarse aggregate content.

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  • Effect of Coarse Aggregate Gradation and Water-Cement ...

    Two w/c ratios are considered 0.38 and 0.42. The effect of coarse aggregate gradation, cement-aggregate ratio and w/c ratio are studied in terms of unit weight and compressive strength of NFC. The results reveal the pronounced effect of aggregate gradation on the compressive strength and unit weight of the concrete.

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  • Effects of Aggregate Properties on Concrete - Size, Grading

    The lower the water to cement ratio, the more the effect of coarse aggregates on the strength of concrete. Undesired properties of coarse aggregate may affect the strength, durability, and performance of concrete negatively. The compressive aggregate strength is an important factor in the selection of aggregate.

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  • Flexural and Compressive Strength of Concrete as Affected ...

    Title: Flexural and Compressive Strength of Concrete as Affected by the Properties of Coarse Aggregates Author(s): M. F. Kaplan Publication: Journal Proceedings Volume: 55 Issue: 5 Appears on pages(s): 1193-1208 Keywords: no keywords Date: 5/1/1959 Abstract: Experiments were conducted to determine the effects of the properties of 13 different coarse aggregates on the flexural and compressive ...

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  • (PDF) Effect of Partial Replacement of Coarse Aggregate by ...

    The cube compressive strength of concrete at the age of 7 days resulted in marginal reduction with 10% and 20% replacement of coarse aggregate with a coconut shell. 6. The replacement of the 10%coconut shells as coarse aggregate and 10%fly ash as cement will decrease the marginal value of 0.525% in compression strength. 7.

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  • THE CORRELATION BETWEEN AGGREGATE SHAPE AND …

    The strength and the stiffness of coarse aggregate directly influence the behavior of hardened concrete. Although in normal concrete, strength is controlled by the paste or by the transition zone between paste and aggregate, the strength of high-performance concrete depends not only on the strength but on the mineralogy of coarse aggregate as well

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  • Compressive strength of˜concrete with˜palm kernel shell as ...

    CSAve a compressive str20.58N/ 2 at28˚days. The mechanical properties show that it is suitable for both heavy and lightweight concrete.O - chukwu et˚al.[24]ested the effect of palm kernel shell aggregate as partial replacement for coarse aggregate

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  • A COMPARATIVE STUDY ON COMPRESSIVE STRENGTH OF …

    As fine aggregate component, 20% optimum replacement resulted in a compressive strength of 23.65N/mm2 at 28 days, whereas as coarse aggregate component, the 28 days strength was found to be 20.65N/mm2 at 10% optimum replacement. For percentage replacements of 5% - 10%, glass as coarse aggregate produced slightly higher strength

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  • The Effect of Aggregate Properties on Concrete

    types, coarse and fine. Coarse aggregate is usually greater than 4.75 mm (retained on a No. 4 sieve), while fine aggregate is less than 4.75 mm (passing the No. 4 sieve). The compressive aggregate strength is an important factor in the selection of aggregate. …

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  • The Effect of Maximum Coarse Aggregate Size on the ...

    between the maximum coarse aggregate size and the compressive strength follows a polynomial with R 2= 1; indicating that the model is reliable. The optimum maximum coarse aggregate size for the best compressive strength of 28 day concrete was therefore found to be 8mm for the water/cement ratio of 0.63. The analysis

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  • EXPERIMENTAL INVESTIGATION ON CONCRETE WITH …

    replacement coarse aggregate it as an economical for use in concrete works. 5. Waste Management 6. 7. CONCLUSION The following conclusion can be drawn from the results obtained from the experimental investigations. The specimen cast with 40% DCA&1%SF replacement by coarse aggregate gives better compressive strength of

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  • Investigating the Effects of Coarse Aggregate Types on The ...

    Investigating the Effects of Coarse Aggregate Types on The Compressive Strength Of Concrete Aginam, C. H.1, Chidolue, C. A.2, And Nwakire, C.3 1, 2, 3Department of Civil Engineering, Nnamdi Azikiwe University, Awka Anambra State, Nigeria ABSTRACT Concrete has a far greater strength than mortar and sandcrete of the same cement: aggregate ratio.

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  • Partial Replacement of Cement in Concrete using Ceramic ...

    Coarse aggregate: Conforming to all in aggregates of Table 2 of IS 383. Fine aggregate : Conforming to Grading Zone II of Table 4 of IS 383. Target Strength for Mix Proportioning: fck = fck + 1.65 s. where. fck = Target average Compressive Strength at 28 days, fck = Characteristics Compressive Strength at 28 days, and. s = standard deviation.

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