موقعك الحالي:صفحة رئيسية>المنتجات
2017-1-30 · river sand for concrete and block work, alternative materials like laterite, quarry dust and recycled aggregate etc. are being sourced for as partial or full replacement for river sand. Full replacement of river sand with a blend of quarry dust and laterite in the production of blocks is a growing phenomenon in most cities across Nigeria.
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Comparing the compressive strengths of concrete made with river sand and quarry dust as fine aggregates Chijioke Chiemela1, fgwegbe talter1, Ibearugbulem Ogedi1, Okoye meter2, Oke Mong2 1Civil Engineering Department, Federal Polytechnic Nekede, Owerri, Imo State, Nigeria 2Mechanical Engineering Department, Federal Polytechnic Nekede Owerri Imo State, Nigeria
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2021-7-21 · Sand is a prevalent building material that accounts for about 75% content of most buildings currently in Nigeria. Although the usage of its alternatives are there, but they are not rampant compared to the application of soft and sharp sand in molding of blocks or bricks, Earth filling, laying of blocks, wall plastering and many other uses of this common building material in
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2020-3-1 · River sand and lateritic soils were sourced locally around the Landmark University premise with a geographical position of 8.1239° N, 5.0834° E. Red earth soil was gotten at a location around a hilly terrain within the University premise while quarry dust was obtained from a quarry site within the township of Omuaran at a location of 8.1402° N, 5.0963° E. Ordinary
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This project work focuses on the comparative analysis of strength of concrete using sharp sand from the bed of Unwana river in Afikpo North L.G.A and quarry dust from Amasiri Quarry site in Afikpo south L.G.A. all in Ebonyi state. The concrete mix design used was 1:2:4 and unicem cement was also used in carrying out the practical as regards to ...
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2017-3-11 · Figure 4.14a Extraction of river sand from sampled Site A 77 Figure 4.14b Illegal miners escaping from raids at river sand sampled Site A 77 Figure 4.15 Burnt tyres on riverbed from river sand sampled Site B 78 Figure 4.16 River extension due to mining on sampled Site C 80 Figure 4.17 Undisturbed River sand sampled Site D 80 ...
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2014-6-16 · Environmental Effects of Sand and Gravel Mining on Land and Soil in Luku, North Central Nigeria . By Ako T. A., Onoduku U. S., Oke S. A., Idris F. N., Umar A. N. , Ahmed A. A. & Abba F. M. Federal University of Technology, Nigeria . Abstract- The increase in the demand for sand and gravel for construction and other purposes
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2022-1-26 · This sand can be considered as an alternative to improve quarry and river sand [24] [26]. In addition, from the point of view of the drying kinetics of
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2018-9-14 · This work is focused on the use of quarry dust as a total replacement to river sand in the production of concrete, and comparing the results (compressive strength) to that obtained from conventional concrete made with river sand. Key word: Quarry dust, river sand, compressive strength, water cement ratio, workability. 1. INTRODUCTION
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Ordinary Portland cement (OPC) was blended with river sand and quarry dust at five levels, namely 10%, 20%, 30%, 40%, and 50%, by partially
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The percentage replacement of natural river sand with quarry sand for a designed strength of 25N/mm 2 varied at intervals of 10 % up to a maximum value of 100%. A total of 134 cubes of 150×150×150mm were cast and tested at 7, 14 and 28 days of hydration. Compressive strength increases with curing age in all the mixes.
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2022-1-9 · Abstract. This study tried to compare the flexural strength of concrete made with riversand and quarry dust as fine aggregate.River sand was collected from Osogbo, Osun State, replaced at 0-100% at intervals of 10% with quarry dust gotten from Wasimi, Osun State, Nigeria.Abstract Common river sand is expensive due to the excessive cost of transportation
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2020-10-12 · After curing the blocks for 7 days the blocks made with cement and river sand had the highest average compressive strength of 2.08 N/mm 2 compared with the rest (Fig. 4), the difference between the average compressive strength of the blocks made with cement and quarry dust which is 1.91 N/mm 2 is not so much. While those made with the mixture ...
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combinations of lateritic sand and quarry sand as complete replacement for conventional river sand fine aggregate. Quantity of lateritic sand varied from 0 to 50% against quarry dust at interval of 10%. Concrete cubes were prepared for two mix ratios: 1:1.5:3 and 1:2:4 and three water/cement ratios: 0.5, 0.6 and 0.7 and were cured and tested in the
Read More2020-3-1 · River sand and lateritic soils were sourced locally around the Landmark University premise with a geographical position of 8.1239° N, 5.0834° E. Red earth soil was gotten at a location around a hilly terrain within the University premise while quarry dust was obtained from a quarry site within the township of Omuaran at a location of 8.1402° N, 5.0963° E. Ordinary
Read MoreThis project work focuses on the comparative analysis of strength of concrete using sharp sand from the bed of Unwana river in Afikpo North L.G.A and quarry dust from Amasiri Quarry site in Afikpo south L.G.A. all in Ebonyi state. The concrete mix design used was 1:2:4 and unicem cement was also used in carrying out the practical as regards to ...
Read More2014-6-16 · Environmental Effects of Sand and Gravel Mining on Land and Soil in Luku, North Central Nigeria . By Ako T. A., Onoduku U. S., Oke S. A., Idris F. N., Umar A. N. , Ahmed A. A. & Abba F. M. Federal University of Technology, Nigeria . Abstract- The increase in the demand for sand and gravel for construction and other purposes
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24inch Swimming Pool Sand Filter. ₦ 280,000. Sand filters work by allowing water to cycle through a canister that contains sand. The water flows through the sand with ease, but larger particles are unable to pass through. Once the debris and other particles have been fi...
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2022-1-12 · We look forward to doing business with serious minded Individuals or Companies and your satisfaction is our guarantee. Intrested parties can contact via. 07068750845. 08189950428. Etimoqua@gmail. Thank You. Re: Supply Of
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2021-6-4 · The river deposits are the most common source of fine aggregate. Now-a-days the natural river sand has become scarce and very costly. Hence we are forced to think of alternative materials. The Quarry dust may be used in the place of river sand fully or partly. A comparatively good strength is expected when sand is
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2020-12-17 · This present chapter examined the impact of river sand mining and its ecological footprint at odor river, Amaokpala, Anambra State, Nigeria. A mixed method approach was adopted in the case study that included qualitative (in-depth interview with 30 sand miners, transect walks, field observations and photography) and quantitative methods (160 ...
Read More2020-10-12 · After curing the blocks for 7 days the blocks made with cement and river sand had the highest average compressive strength of 2.08 N/mm 2 compared with the rest (Fig. 4), the difference between the average compressive strength of the blocks made with cement and quarry dust which is 1.91 N/mm 2 is not so much. While those made with the mixture ...
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2021-6-4 · rock industries quarry located in Ishiagu in Ebonyi state, Nigeria. River sand obtained from Otamiri River was the fine aggregate. The river sand was sharp and free from clay, debris and other deleterious materials. The grading of the sand was carried out to BS 812 (BS 812). The sand belongs to grading zone C (Neville, 1996).
Read More2022-1-9 · Abstract. This study tried to compare the flexural strength of concrete made with riversand and quarry dust as fine aggregate.River sand was collected from Osogbo, Osun State, replaced at 0-100% at intervals of 10% with quarry dust gotten from Wasimi, Osun State, Nigeria.Abstract Common river sand is expensive due to the excessive cost of transportation
Read More2020-3-1 · River sand and lateritic soils were sourced locally around the Landmark University premise with a geographical position of 8.1239° N, 5.0834° E. Red earth soil was gotten at a location around a hilly terrain within the University premise while quarry dust was obtained from a quarry site within the township of Omuaran at a location of 8.1402° N, 5.0963° E. Ordinary
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2021-4-16 · Nigeria by Ikechukwu (2012), based extensively on the constituent particles and compressive strength of blocks of river sand and quarry dust, revealed that the river sand and quarry du st samples contained 90.8 % and 83.8 % of sand size particles respectively. The quarry dust contained 11.8 % of the silt size
Read MoreThis project work focuses on the comparative analysis of strength of concrete using sharp sand from the bed of Unwana river in Afikpo North L.G.A and quarry dust from Amasiri Quarry site in Afikpo south L.G.A. all in Ebonyi state. The concrete mix design used was 1:2:4 and unicem cement was also used in carrying out the practical as regards to ...
Read More2014-6-16 · Environmental Effects of Sand and Gravel Mining on Land and Soil in Luku, North Central Nigeria . By Ako T. A., Onoduku U. S., Oke S. A., Idris F. N., Umar A. N. , Ahmed A. A. & Abba F. M. Federal University of Technology, Nigeria . Abstract- The increase in the demand for sand and gravel for construction and other purposes
Read More24inch Swimming Pool Sand Filter. ₦ 280,000. Sand filters work by allowing water to cycle through a canister that contains sand. The water flows through the sand with ease, but larger particles are unable to pass through. Once the debris and other particles have been fi...
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` Printed in Nigeria APPLICABILITY OF QUARRY SAND AS A ... The percentage replacement of natural river sand with quarry sand for a designed strength of 25N/mm 2 varied at intervals of 10 % up to a maximum value of . A total of 134 cubes of 150×150×150mm were cast and tested at 7, 14 and 28 days of hydration.
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الصين -تشنغ تشو -المنطقة الوطنية للتنمية الصناعية للتكنولوجيا المتطورة، جادة العلوم رقم 169.
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