The dry production design is adopted, but the production line is equipped with environmental protection devices such as dust removal and silencer, which effectively reduce pollution such as dust and noise, fully comply with national environmental protection standards, easily pass environmental impact assessment standards, and achieve both economic and environmental benefits.
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The 200-ton granite crushing and sand making production line solution adopts the overall operating principle of "more crushing and less grinding", and has the characteristics of high efficiency and good finished products.
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On site, only the road surface requires leveling and compacting to establish working conditions, eliminating the necessity for cement foundation leveling and hardening. This significantly reduces the project's construction material costs.
The iron ore is evenly fed by TSW1139 feeder into HJ98 high-efficiency jaw crusher for coarse crushing. After that, the materials would be sent into CS160 cone crusher for secondary crushing.
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— Sandcrete blocks are precast composite masonry units made of cement sand and water and are moulded into various sizes According to the British Standard BS 6073 1981 Part 1 a block is a heterogeneous building material with a unit that is larger in all dimensions than what is required for bricks but no dimension should be larger than 650
DOI / Corpus ID 239227050; Engineering the geological evaluation of some rocks from Akure Southwestern Nigeria as aggregates for concrete and pavement construction
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— The study investigates the quality of blocks produced using fine aggregate river sand cement and water D E 2012 Predicting the compressive strength of obudu earth blocks stabilized with cement kiln dust Nigerian Journal of Technology 32 149 155 Google Scholar Oyekan G L & Kamiyo O M 2008 Effect of Nigerian rice
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— Ordinary Portland cement of grade was used as binder Coarse aggregate used was granite of maximum nominal size of mm Potable water was used for mixing the concrete while sand samples were collected from five main supply points in Osun State Nigeria
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— The importance of rocks and rock aggregates cannot be overemphasized in construction and concrete design globally This study evaluated the physical and mechanical characteristics of fine grained granite porphyritic granite quartzite granite gneiss migmatite gneiss and charnockite from ten different locations in Akure for their
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— Sandcrete blocks are precast composite masonry units made of cement sand and water and are moulded into various sizes According to the British Standard BS 6073 1981 Part 1 a block is a heterogeneous building material with a unit that is larger in all dimensions than what is required for bricks but no dimension should be larger than 650
— The study investigates the quality of blocks produced using fine aggregate river sand cement and water D E 2012 Predicting the compressive strength of obudu earth blocks stabilized with cement kiln dust Nigerian Journal of Technology 32 149 155 Google Scholar Oyekan G L & Kamiyo O M 2008 Effect of Nigerian rice
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— The use of two types of course aggregates for different works is examined in this study Typical strength concrete is being made from various aggregates and their impact on various characteristics
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— Nigeria which was clean sharp free from clay and organic matter and also well graded according to the requirements set by ASTMC 1992 standard specification of aggregates for conventional concrete This fine aggregate is an aggregate whose size is not larger than 5mm passing the No 4 ASTM sieve and
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— The concrete materials were weighed batched mixed cast and cured using four different mix proportions of 1 2 4 2 4 2 4 and 2 4 of cement fine and coarse aggregate at constant
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— Fine aggregates as one of the major components of concrete play a major role in determining the quality of concrete to be produced hence the need to know its physical and chemical properties
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Quality Counts Make sure that your concrete producer purchases good quality aggregate as verified by regular aggregate test results in compliance with ASTM C 33 "Standard Specifications for Concrete Aggregates " A history of good performance of a local aggregate also provides an indication of how well the material performs in service
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— Two mix proportions of 1 2 4 and 1 3 6 by weight of cement sand and RAP aggregate were made with water/cement ratios of and In addition control mixes were made with natural aggregate having identical proportion by weight of cement sand coarse aggregate and water/cement ratio as their respective mixes containing RAP
— As Nigeria is noted for frequent building collapse this research reproduces standard concrete practices commonly adopted in Nigerian construction industry with the intent to predict design
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— The quantity of concrete materials such as cement sand and aggregate used to produce the required quantity of concrete with a given mixing ratio such as 1 2 4 M15 1 3 M20 1 1 2 M25 The absolute volume method can be used to calculate This method is based on the principle that the volume of fully compacted concrete is
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— The main findings of this investigation revealed that the waste material could be reused successfully as partial substitutes for coarse aggregates in concrete production and the optimum strength
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— The corresponding concrete has a bulk density less than 1800 kg/m3 However normal weight aggregate has unit weight of 1520 to 1680 Kg/m3 The corresponding concrete has a bulk density of 2300 to 2400 Kg/m3 and heavy weight aggregate has a unit weight greater than 2100 Kg/m3 The corresponding concrete has a
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— Incidences of failures of structures linked to bad concrete practice are abounding in Nigeria particularly in our major cities such as Lagos Port Harcourt and Abuja volume and for asphaltic concrete aggregates represent 75 to 85% of the mix volume But Anosike 2011 state in any concrete aggregates fine sand and coarse usually
— The study investigates the quality of blocks produced using fine aggregate river sand cement and water D E 2012 Predicting the compressive strength of obudu earth blocks stabilized with cement kiln dust Nigerian Journal of Technology 32 149 155 Google Scholar Oyekan G L & Kamiyo O M 2008 Effect of Nigerian rice
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— ASSESSMENT OF STEEL SLAG AS REPLACEMENT FOR COARSE AGGREGATE IN CONCRETE A REVIEW of Civil Engineering Ladoke Akintola University of Technology Ogbomoso NIGERIA concrete In
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Concrete is the most used material in the construction industry due to its unique properties like compressive strength durability fire resistance thermal resistance and impact resistance With the population increase and migration of people to the urban cities the demand of cement sand aggregate is rapidly increasing
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— Lafarge Africa Plc is a member of the Holcim Group the global leader in innovative and sustainable building solutions It was incorporated on 24th February 1959 and listed as a publicly quoted company on the Nigerian Exchange on 17th February 1979
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Purpose This paper aims to investigate the 28 day compressive strength of concrete produced with aggregates from different sources Design/methodology/approach Coarse aggregates were crushed granite and natural local stones mined from Umunneochi Lokpa and Uturu Isuakwato respectively in Abia State Nigeria
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This paper investigates the properties of some natural fine aggregates in Minna and its environs Nine soil samples were obtained from different locations and transported to Civil Engineering Laboratory Federal University of Technology Minna Nigeria Tests conducted on the soil samples include specific gravity sieve analysis bulk density and silt content
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— The use of wastes and by products as concrete aggregates is of great practical significance since they often constitute as much as three quarters of the concrete by volume [9] Evaluation of the iron ore tailings from Itakpe in Nigeria as concrete material Adv Mater 3 4 2014 p 27 Crossref Google Scholar [13]
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— Two mix proportions of 1 2 4 and 1 3 6 by weight of cement sand and RAP aggregate were made with water/cement ratios of and In addition control mixes were made with natural aggregate having identical proportion by weight of cement sand coarse aggregate and water/cement ratio as their respective mixes containing RAP
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— The incorporation of laterite in sandcrete blocks production is a common commercial practice in Nigeria However proper calibrations as per optimal mix proportions of these aggregates to give
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Nigerian Journal of Engineering Vol 27 No 2 August 2020 ISSN print 0794 4756 ISSN online 2705 3954 rod The slump is measured when the mold is removed allowing the concrete to stand
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