This paper aims to show the possible applicability of artificial neural networks (ANNs) to predict the compressive strength of recycled aggregate concrete. ANN model is constructed, trained and tested using 146 available sets of data obtained from 16 different published literature sources. The ANN model developed used 14 input parameters that included: the mass of water, cement, sand, natural ...

Get PriceStrength Properties of Concrete Containing Coconut Shell as Coarse Aggregate Replacement Duna, Samson * 1. and Musa, Abdullahi. 2 * 1. Associate Professor, Department of Civil Engineering, Abubakar Tafawa Balewa University, Bauchi, ... compressive strength, flexural strength as well as the density. The results showed that generally strengths ...

Get PriceInfluence of Aggregate Characteristics on Concrete Performance Dale P. Bentz Joshua Arnold Michael J. Boisclair ... AIMS characteristics of aggregates used in the present study (Coarse/Coarse + Fine). C,D..... 20 Table 6. Surface energies, modulus, and CTE of aggregates used in the present study. ..... 21 Table 7. Density, static modulus of elasticity, compressive and tensile strengths, and ...

Get PriceThe flexural strength of concrete was found to be 8 to 11% of the compressive strength of concrete of higher strength concrete of the order of 25 MPa (250 kg/cm 2) and 9 to 12.8% for concrete of strength less than 25 MPa (250 kg/cm 2) see Table 13.1: . The ratio of flexural strength to compressive strength was found higher for 40 mm maximum size aggregate than that of 20 mm max sized aggregate.

Get Pricestrength concrete made with crushed brick as coarse aggregate and found that higher strength concrete (fcu = 31.0 to 45.5 N/mm2) with brick aggregate is achievable whose strength is much higher than the parent uncrushed brick implying that the compressive strength of brick aggregate concrete can be increased by decreasing its water-cement ratio.

Get PriceEFFECTS OF COARSE AGGREGATE SIZES ON THE FLEXURAL STRENGTH OF CONCRETE Ozioko, H. O. Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, Abia State Nigeria. Email: [email protected] Phone: +2348034933579 ABSTRACT In order to determine the effects of coarse aggregate size on the flexural strength of concrete, concrete beams …

Get Pricemixture, having the compressive strength of about 80 MPa, was modified to produce reductions in density of concrete by replacing varying amounts of the coarse aggregate with expanded polystyrene beads. Using 200 mm concrete cube specimens, the bearing strength of polystyrene aggregate concrete was determined. Square and circular

Get PriceInfluence of size of aggregates on the Compressive strength of concrete 1Neetu, 2Ahsan Rabbani 1Mtech Scholar, Department of Civil ... (20 mm) than the 10mm (13 mm) coarse aggregates. Compressive strength = Compressive Load / Cross Sectional Area of the Specimen Grade of Concrete Different -different sizes of aggregates (10mm,12mm,15mm ) Minimum compressive strength N/mm2 at 7 days compressive ...

Get PriceCompressive strength of Concrete and its importance:- As we all know that concrete is a mixture of sand, cement, and aggregate . The strength of the concrete depends upon many factors like individual compressive strength of its constituents (Cement, Sand, aggregate), quality of materials used, air entrainment mix proportions, water-cement ratio, curing methods and temperature effects.

Get PriceAggregate (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 Aggregate Concrete (NAC). At the age of 28 …

Get PriceCeramic aggregates Compressive strength Durability performance 1 Introduction In Europe the amount of wastes in the different production stages of the ceramic industry reaches some 3–7% of its global production meaning millions of tons of calcined-clays per year that are just land ﬁlled [1]. With increasing restrictions on landﬁlls in European Union area, the cost of deposition will ...

Get PriceThe Effect of Recycled Coarse Aggregate and Industrial Wastes on the Compressive Strength at Normal and Elevated Temperatures I. A. Sharakya,b, M. Alwetaishi a, U. H. Issaa,c aCivil Engineering department, College of Engineering, Taif university, P.O. Box 54545, Taif, KSA ...

Get Pricestrength concrete made with crushed brick as coarse aggregate and found that higher strength concrete (fcu = 31.0 to 45.5 N/mm2) with brick aggregate is achievable whose strength is much higher than the parent uncrushed brick implying that the compressive strength of brick aggregate concrete can be increased by decreasing its water-cement ratio.

Get PriceThe study utilize cement of the same strength (42.5R), coarse aggregate of the same size (10mm), the same water/cement ratio (0.6), and concrete mix (1:2:4) in order to determine the influence of ...

Get PriceCompressive Strength The main measure of the structural quality of concrete is its compressive strength. This property of concrete is commonly considered in structural design. Depending on the mix (especially the water-cement ratio) and time and quality of the curing, compressive strength of concrete can be obtained up to 14,000 psi or more. Commercial production of concrete with ordinary ...

Get PriceAjamu S.O. and IgeJ.A. (b) Effect of Coarse Aggregate Size on the Compressive Strength and the Flexural Strength of Concrete Beam. Int. Journal of Engineering Research and Applications 5(4), 2015, pp.67-75. Karagüler M.E. and Yatağan M.S. (2018) Effect of Aggregate Size on the Restrained Shrinkage of the Concrete and Mortar. MOJ Civil Eng 4(1 ...

Get PriceEffects of Compressive Strength With and Without Coarse Aggregate on High Strength Concrete by using Fly Ash and Silica Fume .More specifically the project work has been carried out. a) To find out the compressive strength of granite chips of 10mm. b) To find out the flexure strength of

Get Priceaggregate replacement on the rheology, compressive strength and carbonation properties of fly ash and mortar. Rheological properties, compressive strength and rate of carbonation of mortars of water to portland cement ratio of 0.3, 0.4 and 0.5, in which the fine aggregate was replaced with fly ash at …

Get Priceaggregate, the strength of high-performance concrete depends not only on the strength but on the mineralogy of coarse aggregate as well (Alexander, 1989; Cetin, 1998; Ezelding, 1991). Shape of the aggregates contributes to the strength value of concrete. Comparing the strength value between angular and smooth

Get PriceEFFECTS OF COARSE AGGREGATE SIZES ON THE FLEXURAL STRENGTH OF CONCRETE Ozioko, H. O. Department of Civil Engineering, Michael Okpara University of Agriculture Umudike, Abia State Nigeria. Email: [email protected] Phone: +2348034933579 ABSTRACT In order to determine the effects of coarse aggregate size on the flexural strength of concrete, concrete beams …

Get PriceTitle: 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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