199721· The workability of the fresh concrete at each strength level was indexed to the slump of the concrete containing gravel coarse aggregate. Superplasticizer was used, if …
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200851· The raw materials used for this study are natural coarse (NG) and fine (NS) calcareous aggregates, coarse (RG) and fine (RS) crushed bricks aggregates and a Portland …
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2024715· Specifically, the C–R group's slump value is noted at 195 mm with a CSD of 5.3 mm, and the I–R group demonstrates slump values of 195 mm and a CSD of 5.5 mm. Fresh …
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and bond properties of coconut shell concrete. The properties of concrete using coconut shell as coarse aggregate were studied. Compressive, flexural, splitting tensile strengths, impact …
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The results indicated that using of pebbles as coarse aggregate shows sufficient strength, permeability and durability properties. The strength parameters and permeability parameters …
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201611· Test results indicated that the use of 5% groundnut shell ash and 15% Metakaolin as partial replacement of cement in concrete with use of 25% replacement of natural coarse …
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20171115· Concrete specimens were prepared with different recycled gravel content of 0%, 30%, 65% and 100% by volume of the total coarse gravel. The knowledge of fracture …
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The importance of using the right type and quality of aggregates cannot be overemphasized. The fine and coarse aggregates generally occupy 60% to 75% of the concrete volume (70% to …
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2024829· Production and Characteristics of Coarse Aggregate. The methods of producing coarse aggregates have evolved considerably over time. The strength and angularity of the …
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11· As to the aggregate morphology's effects on the mechanical performance of concrete, most of the current research focused on elongation and flaky aggregates, and most …
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Coarse aggregates: 12: 18 *Source- IS: 383 – 1970 3. Approximate Water Absorption of Aggregates, by Weight. Average sand: 1.0 percent: Pebbles and crushed limestone: 1.0 …
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also used as fine or coarse aggregate. 2.2.2.1 TYPES OF AGGREGATE 1. Coarse Aggregate Coarse-grained aggregates will not pass through a sieve with 4.75 mm openings (No. 4). …
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coarse aggregate. There are several reasons for specifying grading limits and nominal maximum aggregate size; they affect relative. 82. Design and Control of Concrete Mixtures EB001. Fig. 5 …
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31· Concrete is a mixture of cementitious material, aggregate, and water. Aggregates are essential granular materials used in civil engineering (Přikryl, ).They represent70 % to …
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binder. The results indicated that using of pebbles as coarse aggregate shows sufficient strength, permeability and durability properties. The strength parameters and permeability parameters …
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2024823· Foreign materials like dust, chemicals, etc reduce the binding property of aggregate i.e. adhesion between coarse aggregate and bitumen is reduced. So, the material …
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111· However, they reported very low workability in concrete containing 100% coarse ceramic aggregate with a slump value of 40 mm. Tavakoli et al. [24] also observed a slight …
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20161115· The evaluation included the use of direct test methods for aggregate characteristics and for the properties of concretes formed with these aggregates. In addition to …
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74· Coarse aggregates are an essential component of a wide variety of construction applications.Sometimes, coarse aggregates are used on their own, such as a granular base …
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810· Coarse Aggregates. Coarse aggregates contain large particles with diameters between 5mm-40mm or more. Common types of coarse aggregates include gravel, crushed …
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200331· The importance of the mineralogical characteristics of coarse aggregates on the quality of concrete has been pointed out by Farran [9], Maso [10], Alexander and Davis [11], …
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202496· Coarse aggregates are generally larger particles. These have diameters greater than 4.75 millimeters. For example: gravel and crushed stones. They are obtained from natural …
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121· Influence of coarse aggregate size and content on the properties of recycled aggregate concrete using non-destructive testing methods Author links open overlay panel …
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1220· Concrete is the second most consumed material in the world. It is estimated that each human being uses three tonnes of concrete per annum (van Oss, 2007 cited in …
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Physical Prosperities of Aggregate : Grading Grading is the particle-size distribution of an aggregate as determined by a sieve analysis using wire mesh sieves with square openings. As …
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214· The physical properties of natural pebble coarse aggregate and recycled pebble coarse aggregate are tested by GB/T14685-2011 [37]. The results were shown in Table 1. …
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2024121· In this study, the shear mechanical properties of concrete with gravel aggregate and pebble aggregate as recycled coarse aggregate were assessed by taking the replacement …
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198513· The effects of using recycled concrete aggregates instead of natural aggregates in concrete are: reduction in compressive strength up to 25%; reduction in modulus of …
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91· It involves the use of various aggregates like laterite and quarry dust to replace conventional river sand fine aggregate. The full replacement of …
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20201123· The strength of concrete, mostly depends on the strength and properties of coarse aggregate since the major volume of concrete was covered with coarse aggregate. The …
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