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In this study, the effect of Iron Ore Tailings (IOT), as fine aggregate in mortars, on microstructure and compressive strength with 14 days was observed on mortar specimens. The replacement ratios for IOT as fine aggregate were 60% and 100%. Pore structure parameters were measured with the instrument of MIP and calculated with corollary software.
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2015-4-29 processing. Also, unit weight, slump, ultrasonic pulse velocity and compressive strength of concrete were determined. The test results indicated that there is a good correlation between the some shape properties of aggregate and compressive strength Keywords: Aggregate shape, Digital image processing, Concrete, Compressive strength
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2018-12-30 Fig. 10a shows the evolution of the compressive strength of each concrete and Fig 10b shows the relationship between E-Modulus and compressive strength at early ages. For the same value of compressive strength, the higher the amount of recycled aggregate
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2013-9-1 Aggregate Unit weight Compressive strength A B S T R A C T In this paper, the modulus of elasticity of lightweight concrete contains polyethylene terephthalate (PET) as fine, coarse aggregate
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2017-9-16 Aggregate properties and strength parameters of four andesites from two operating Hungarian quarries of Nógrádkövesd (one lithotype) and Gyöngyössolymos (three lithotypes) are presented in this paper. Air-dry, water-saturated and freeze–thaw subjected specimens were tested on core-drilled cylindrical specimens, and the aggregate properties were also determined from the
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2021-1-25 Compressive strength and resistance to chloride ion penetration and carbonation of recycled aggregate concrete with varying amount of fly ash and fine recycled aggregate Waste Manage. , 31 ( 11 ) ( 2011 ) , pp. 2352 - 2360
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Relationship between of aggregate crushing value of granite and compressive strength of concrete Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Relationship between of aggregate crushing value of granite and compressive strength of concrete, quarry, aggregate
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compressive strength. There are many variables that influence recycled concrete compressive strength (grading curves, maximum size fraction, natural aggregate source, cement class, possible admixtures, etc.) which have not been taken into account. In fact, it is really difficult to
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2014-1-8 compressive strength of concrete. 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
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2018-12-12 CMPSE2017 3.2RelationshipbetweenCompressiveStrength andReboundNumber The compressive strength of all concrete samplings versusthereboundnumberareillustratedinFig.3b.The
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The importance of the shape of aggregate particles on their mechanical behavior is well recognized. In concrete, the shape of aggregate particles has been related to durability, workability, shear resistance, tensile strength, stiffness, and fatigue
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This paper describes the experimental investigation of relationship between splitting tensile strength and flexural strength with the compressive strength of concrete containing waste PET as fine aggregates replacement. Waste PET was reprocesses and used as the artificial fine aggregate at the replacement volume of 25%, 50% and 75%, Cylindrical and prism specimens were tested to obtain the ...
Read More2015-4-29 processing. Also, unit weight, slump, ultrasonic pulse velocity and compressive strength of concrete were determined. The test results indicated that there is a good correlation between the some shape properties of aggregate and compressive strength Keywords: Aggregate shape, Digital image processing, Concrete, Compressive strength
Read More2017-9-16 Aggregate properties and strength parameters of four andesites from two operating Hungarian quarries of Nógrádkövesd (one lithotype) and Gyöngyössolymos (three lithotypes) are presented in this paper. Air-dry, water-saturated and freeze–thaw subjected specimens were tested on core-drilled cylindrical specimens, and the aggregate properties were also determined from the
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The effects of accelerated curing temperature and fine aggregate on early strength as well as the relationships between early strength – 28-day strength and strength maturity have been examined. Cube concrete specimens produced with a 10-cm constant slump value, 0.59 w/c ratio, and with two different types of fine aggregate were subjected to ...
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2019-12-1 results of the analysis of compressive strength obtained maximum compressive strength of 17.87 MPa and optimum compressive strength of 17.2 MPa with a composition of 38.0% sand, moderate laterite 46.0% and coarse laterite 16.0% so that laterite concrete as a coarse aggregate substitute could used for mix concrete.
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2017-9-26 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. Comparison percentage is 47.6%. Density concrete
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The relationship between depth of wear and compressive strength was also presented. Finally, the fresh properties, compressive strength (and strength development), and abrasion resistance of the fine aggregate-replaced silica fume concretes were compared with those of the reference mixtures.
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aggregate for concrete masonry units, and Valore covered both structural and insulating concretes. 7.1 Compressive Strength While all structural lightweight aggregates are capable of producing concretes with compressive strengths in excess of 35 MPa (5000 psi), a limited number of
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2013-9-4 compressive strength for both ordinary and high volume fly ash concrete. Fig. 8 shows the compressive strength at 28 days for ordinary and high volume fly ash concrete and also predicted compressive strength of ordinary and high volume fly ash concrete. Fig. 9 represents the relationship between the water/cement ratio and
Read More2015-4-29 processing. Also, unit weight, slump, ultrasonic pulse velocity and compressive strength of concrete were determined. The test results indicated that there is a good correlation between the some shape properties of aggregate and compressive strength Keywords: Aggregate shape, Digital image processing, Concrete, Compressive strength
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2019-7-1 for conventional fine aggregate. Samples of concrete (eg. Cubes ,Cylinders) were made using varying contents of laterite and river sand as fine aggregate. The quantity of laterite was varied from 0% to 100%. The samples were cured for specified periods and tested in the laboratory for compressive strength.
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2019-7-1 data on the compressive strength and pulse velocity of RHA concrete as well as establishing the pattern of relationship between the two parameters. 3. Experimental procedure 3.1. Materials 3.1.1. Aggregates The aggregates used for the study were crushed granite for coarse aggregate and natural sand for fine aggregate.
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This paper describes the experimental investigation of relationship between splitting tensile strength and flexural strength with the compressive strength of concrete containing waste PET as fine aggregates replacement. Waste PET was reprocesses and used as the artificial fine aggregate at the replacement volume of 25%, 50% and 75%, Cylindrical and prism specimens were tested to obtain the ...
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2016-9-9 compressive strength were 57.5%, 68.1%, 83.7%,and 87.3% respectively. The results of the study indicate that both the density and compressive strength of concrete decreased as the percentage replacement increased but replacement of sand by sawdust produced a higher percentage reduction in compressive strength than in density.
Read More2017-9-26 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. Comparison percentage is 47.6%. Density concrete
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The results shows the significant relation of compressive toughness factor and 28 days compressive strength of UHPC, The model are valid for the mixes made with 1.0 sand, 0.15-0.30 silica fume ...
Read More2019-12-1 results of the analysis of compressive strength obtained maximum compressive strength of 17.87 MPa and optimum compressive strength of 17.2 MPa with a composition of 38.0% sand, moderate laterite 46.0% and coarse laterite 16.0% so that laterite concrete as a coarse aggregate substitute could used for mix concrete.
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2020-12-17 Desert sand is one of the current research hotspots in alternative materials for concrete aggregates. In the process of practical application, compressive strength is an essential prerequisite for studying other properties. Based on the current research situation, a prediction technology of compressive strength of desert sand concrete (DSC) is proposed based on an artificial neural network ...
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aggregate for concrete masonry units, and Valore covered both structural and insulating concretes. 7.1 Compressive Strength While all structural lightweight aggregates are capable of producing concretes with compressive strengths in excess of 35 MPa (5000 psi), a limited number of
Read More
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