Purpose: In this research, the effect of re-vibrated concrete using locust bean epicarp extract and Bida natural stone (Pebbles) as coarse aggregate was presented. …
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2024814· Obtaining river or sea pebbles from local resources for concrete production is considered an economical and eco-friendly alternative, particularly in marine and island …
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2024814· Specifically, sea pebbles are used as a coarse aggregate (referred to hereafter as sea pebble concrete, SPC) due to their accessibility and abundant reserves. Over the …
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Abstract: The main purpose of this study is to investigate the effect of using three types of coarse aggregates (gravel, basalt and dolomite) and three different percentages of water and cement …
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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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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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81· A total of 600 testing results for coarse recycled concrete aggregate specimens were summarized. With a 95% probability of all the carbonation depths, the carbonation depth …
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201793· The selection of an aggregate is determined, in part, by the desired characteristics of the concrete. For example, the density of concrete is determined by the …
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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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The results indicated that using of pebbles as coarse aggregate shows sufficient strength, permeability and durability properties. The strength parameters and …
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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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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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25% Coarse Aggregate Replacement 18 50% Coarse Aggregate Replacement 20 75% Coarse Aggregate Replacement 20 3.2 Compressive and Flexural Test These tests were carried out …
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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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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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3. Shape of Coarse Aggregate. Coarse aggregates may be round, angular, or irregular shape. Rounded aggregates have lowest water demand due to lower surface area, and also have …
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3. Shape of Coarse Aggregate. Coarse aggregates may be round, angular, or irregular shape. Rounded aggregates have lowest water demand due to lower …
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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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98· Results showed that the peak stress of the elliptical aggregate concrete was 2.8 MPa higher than that of the oblate spherical aggregate concrete, leading to more cracks and …
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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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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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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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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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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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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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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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and sizes of coarse aggregate on the compressive strength of normal concrete. The effect of using quartzite, granite, and river gravel as coarse aggregate on the physical properties of …
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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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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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