Granite is a coarse aggregate that is quite expensive when compared with gravel in Nigeria. Therefore, this research is aimed at optimizing blended granite and gravel in the production of porous concrete. Samples of blended granite-gravel porous concrete of varying mix proportions were produced using cement to aggregate mix ratio of 1:4.
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Granite: The granite (coarse aggregate) used for the study was of range 2mm to 19mm graded, it was source from a quarry on Iyuku Auchi suburb community Nigeria, Edo
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road, Osun state, Nigeria. The coarse aggregates consisted of granite particles of ranges 19 – 12 mm and 12 – 5 mm, the fine aggregate consisted of granite particles passing 4.75 mm and retained on 75 µm BS sieves, the mineral consisted of granite dust passing 75 µm BS sieve. The aggregates were obtained from Espro quarry,
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infrastructure. Crushed granite is the common and conventional coarse aggregate recommended for use in concrete. Proximity of construction work to quarry locations has been a major concern for construction practitioners in Nigeria. As such, Bida Natural Gravel (BNG) was used to substitute crushed granite in this research.
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aggregate quarries in mexico. Quarries And Aggregate Plant In Mexico. Aggregate Quarries In Mexico China Mining Aggregate Technologies LLC AGGTEC produces quality crushed stone sand and gravel for horiontal and vertical building projects throughout Lincoln and Otero Counties in Southern New Mexico We currently mine over 40 acres at our La Lu NM facilities and have been in the business for more
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Ogun River at Majidun in Ikorodu, Lagos State were used as fine aggregates. Washed gravel was used as coarse aggregates. The ratio of fine to coarse aggregate adopted was 45:55 (ACI, 1992; Krell & Wischers, 1988). The Lafarge Elephant Portland Cement grade (42.5R) was used as binders for this study while portable water was used for the mixing.
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of the coarse aggregate (Reed, Schoo nees and Salmond, 2008). C ompress ive strengt h of buildi ng ston es in pr actice accord ing to Duggal, (2008) ranges between 60 to 200N/mm 2 .
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University of Nigeria. ISSN 1115-8443 COMPARATIVE ANALYSIS OF THE COMPRESSIVE STRENGTH OF CONCRETE WITH GRAVEL AND CRUSHED OVER BURNT BRICKS AS COARSE AGGREGATES N.S. Apebo1 ;a, M.B. Iorwuab, J.C. Agunwamba2 aDepartment of Civil Engineering, University of Nigeria, Nsukka, Nigeria. Emails: [email protected] [email protected]
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Department of Civil Engineering, University of Nigeria, Nsukka, Nigeria. 3. … coarse aggregates only (control) at water – cement ratios of , , and Cubes …. Table 3: Particle Size Distribution for coarse aggregate (washed gravel ) … »More detailed
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Partially Coarse Aggregate with Broken Ceramic Tiles in Con-crete Production” while the objectives are to determine physi-cal properties of aggregates to be used, determine workability of fresh concrete via slump test and compacting factor test and . C ———————————————— • Yiosese A.O., Researcher, Nigerian
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elongated gravel, smooth rounded gravel, irregular gravel and flaky gravel, were also produced. The quantities of cement, sand, water and the coarse aggregate were kept constant for all the mix samples, the only variant is the gradation of the coarse gravel-aggregate. The details of the concrete mix proportion are shown in Table 1 below.
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Properties of Coarse Aggregates Produced in Ogun State, Nigeria. 1Omopariola S.S., 2Dr Jimoh A.A. Abstract— Coarse aggregate has been said to have strong influence on the properties, mix proportion and economy of fresh and hardened concrete. Personal on-site
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selected quarries in Ondo State, Nigeria. In this study, two granite quarries out of the quarrying companies in Ondo State are used as case studies. In order to achieve the aim of Coarse aggregate: Aggregates predominately retained on the No. 4 (4.75 mm) sieve. For mass concrete, the maximum size can be as large as 150 mm.
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from 40 to 55 depending on the aggregate type and intended use. Aggregate: A mixture of coarse to fine-grained particulate material used in construction, typically including sand, gravel, and crushed stone. Aggregates 101 - Common Aggregates in PA Aggregate sieves used to separate material by size (gradation). passes through a 4” screen½ inch
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On the other hand, stones or chippings as they are called are coarse aggregates which are more than 4.75 mm in diameter. They may come as gravel, cobbles or boulders. In mortar, sand serve as a fine aggregate mixed with the binder (usually Portland cement or Lime) in a given ratio so as to give the outcome an adhesive surface area, prevent it
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Nigeria, the quarry dust and the coarse aggregate were obtained from Abakaliki in Ebonyi state Nigeria, the cement used was Dangote cement bought from the ce ment shop and the water used was obtained from pipe borne water from the Federal Polytechnic Nekede Owerri Imo state. All the fine aggregates were washed thoroughly to remove unwanted
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Nigeria, the quarry dust and the coarse aggregate were obtained from Abakaliki in Ebonyi state Nigeria, the cement used was Dangote cement bought from the ce ment shop and the water used was obtained from pipe borne water from the Federal Polytechnic Nekede Owerri Imo state. All the fine aggregates were washed thoroughly to remove unwanted
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aggregate quarries in mexico. Quarries And Aggregate Plant In Mexico. Aggregate Quarries In Mexico China Mining Aggregate Technologies LLC AGGTEC produces quality crushed stone sand and gravel for horiontal and vertical building projects throughout Lincoln and Otero Counties in Southern New Mexico We currently mine over 40 acres at our La Lu NM facilities and have been in the business for more
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area of Anambra state, Nigeria. Crushed granite and river gravel as coarse aggregates were obtained from a local vendor in Makurdi, Nigeria. The fine aggregate is river sand obtained from the river Benue in Makurdi, Nigeria. Analysis was conducted to establish particle size distribution, bulk density, and specific gravity, aggregate
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Key words: Coarse aggregate, compressive strength, concrete, gravel aggregate, Nigeria Cite this Article: David O. NDUKA, Olabosipo I. FABGENLE, Opeyemi JOSHUA, Ayodeji O. OGUNDE, Ignatius O. Omuh, Comparative Analysis of Concrete Strength Utilizing Quarry-Crushed and Locally Sourced Coarse Aggregates, International
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aggregate of fine aggregate (sharp sand) and coarse aggregate (granite, gravel, palm kernel shell). It can be observed from the result of the test carried out that the curing ages, has different effect in the strength of concrete of the same aggregate and mix ratio. The mean strength of concrete cured at 7days , 14days, 21days, and 28days
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Key words: Coarse aggregate, compressive strength, concrete, gravel aggregate, Nigeria Cite this Article: David O. NDUKA, Olabosipo I. FABGENLE, Opeyemi JOSHUA, Ayodeji O. OGUNDE, Ignatius O. Omuh, Comparative Analysis of Concrete Strength Utilizing Quarry-Crushed and Locally Sourced Coarse Aggregates, International
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of the coarse aggregate (Reed, Schoo nees and Salmond, 2008). C ompress ive strengt h of buildi ng ston es in pr actice accord ing to Duggal, (2008) ranges between 60 to 200N/mm 2 .
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Granite is a coarse-grained intrusive igneous rock composed primarily of light-coloured minerals. Crushed granites are small chips of granite, used as a base layer for paving. They are rock-aggregate used in building and general construction [2]. In Southwest-ern region of Nigeria, the estimated demand in 2008 for granite chipping was 24.2 million
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The sample is collected from Abakaliki quarry site in Ebonyi State, Lokpanta quarry site in Umunneochi,Abia State and Otanmiri River in Owerri, Imo State, all in South East part of Nigeria. The properties of these aggregates differ from place to place due to the composition of the parent material, weathering and other environmental factors.
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Gravel + Coarse Aggregates Coarse aggregates contain individual particles greater than 4.75 mm (more than a fifth of an inch) in any given dimension. They most popularly come in the form of gravel, which is composed of crushed rock or waterworn stone — although recycled concrete is also used in many commercial applications.
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elongated gravel, smooth rounded gravel, irregular gravel and flaky gravel, were also produced. The quantities of cement, sand, water and the coarse aggregate were kept constant for all the mix samples, the only variant is the gradation of the coarse gravel-aggregate. The details of the concrete mix proportion are shown in Table 1 below.
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1.Size of Coarse Aggregates: The size of the coarse aggregate depends on the use of the concrete is to be poured. For large-scale concreting operations without complex reinforcement, large aggregates of size 80 mm, 40 mm, 20 mm are used. For the simple construction of residential or other buildings, 20 mm is the maximum size will be used.
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1.Size of Coarse Aggregates: The size of the coarse aggregate depends on the use of the concrete is to be poured. For large-scale concreting operations without complex reinforcement, large aggregates of size 80 mm, 40 mm, 20 mm are used. For the simple construction of residential or other buildings, 20 mm is the maximum size will be used.
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Construction Materials and their current market prices. Hoop iron cost Ksh. 2700 per roll. Coarse Aggregates (kokoto) Coarse aggregate extracted by breaking from rocks using explosives & crushed into pieces using machines & coarse aggregate sizes 6mm, 12mm, 20mm, 40mm, 60mm are divided using big sieves in machines & coarse aggregate like 6,12,20mm is used to mix in concrete for construction
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