Samples of concrete (eg. cubes) were made using varying contents of laterite and quarry dust as fine aggregate. The quantity of laterite was varied from 0% to against quarry dust …
ادامه مطلبconcluded that the compressive strength of concrete, with 50% Sand and 50% quarry dust (Mix 3), under thermo shock and high temperature showed the least reduction in strength. It was finally concluded that quarry dust can be effectively used for 50% replacement of sand in the conventional concrete. Utilization of Quarry Dust as Fine Aggregates ...
ادامه مطلبSamples of concrete (eg. cylinders, beams) were made using varying contents of lateritic sand and quarry dust as fine aggregate. The proportion of lateritic sand was varied from 0% to against quarry dust at intervals of 25%, using concrete mix of 1:1.5:3 and water/cement ratio of 0.65.
ادامه مطلبinvestigated the partial replacement of sand with quarry dust. Initially cement concrete cube was studied with various proportions of cement concrete + quarry dust (M 20, AND M25). The experimental results showed that the addition of quarry dust as fine aggregate ratio of 30%, 40% and 50% was found to enhance the compressive properties.
ادامه مطلبriver 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.
ادامه مطلبStudy on Compressive Strength of Quarry Dust as Fine Aggregate in Concrete K.ShyamPrakash 1 andCh.HanumanthaRao 2 ... Quarry dust is a byproduct of the crushing process which is a concentrated material to use as aggregates for concreting ... concrete proportion of lateritic sand and quarry dust
ادامه مطلبThis paper is part of a study investigating the structural characteristics of concrete using various combinations of lateritic sand and quarry dust as complete replacement for conventional river sand fine aggregate. Samples of concrete (eg. cubes) were made using varying contents of laterite and quarry dust as fine aggregate. The quantity of laterite was varied from 0% to against quarry ...
ادامه مطلبcombinations 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
ادامه مطلبThe strength of hardened concrete using quarry dust and lateritic sand as full replacement to river sand was studied by casting different specimens like cube, cylinder and prism. For both M20 and M25 concrete mixes a total number of 45 cubes, 45 cylinders and 45 prisms were cast and tested under laboratory conditions.
ادامه مطلبThe concept of replacement of natural fine aggregate by quarry dust which is highlighted in the study could boost the consumption of quarry dust generated from quarries. By replacement of quarry dust, the requirement of land fill area can be reduced and can also solve the problem of natural sand scarcity. The availability of sand at low cost as a fine aggregate in concrete is not suitable and ...
ادامه مطلبthe river sand. Quarry rock dust can be defined as residue, tailing or other non-voluble waste material after the extraction and progressing of rocks to form fine particles less than 4.75 mm. Use of quarry rock dust as a fine aggregate in concrete draws serious attention of researchers and investigators. Coarse Aggregate
ادامه مطلب1. Replacement of fine aggregate by quarry dust at partial replace results the increase in strength of concrete. 2. The concept of replacement of natural fine aggregate (sand) by quarry dust may help in many ways such as it is helpful to control environment pollution, erosion of river bank might stop and also the waste quarry material can be
ادامه مطلبThe proportion of 25% laterite to 75% quarry dust and 50% laterite to 50% quarry dust with 0.6 water cement ratio produced workable concrete with good structural characteristics; iii) The density of hardened concrete using lateritic sand and quarry dust was found to range from 2293-2447 Kg/m3.
ادامه مطلبcubes) were made using varying contents of laterite and quarry dust as fine aggregate. The quantity of laterite was varied from 0% to against quarry dust at intervals of 25%.
ادامه مطلبThe proportion of 25% laterite to 75% quarry dust and 50% laterite to 50% quarry dust with 0.6 water cement ratio produced workable concrete with good structural characteristics; iii) The density of hardened concrete using lateritic sand and quarry dust was found to range from 2293-2447 Kg/m3.
ادامه مطلب[6] Farid Debieb, Said Kenai, "The use of coarse and fine crushed bricks as aggregate in concrete" Construction and building materials, 2008, Pg. No. 886 to 893 [7] Joseph O. Ukpata, Maurice E. Ephraim, Godwin A. Akeke, "Compressive strength of concrete using lateritic sand and quarry dust as fine aggregate"
ادامه مطلبThe proportion of lateritic sand was varied from 0% to against quarry dust at intervals of 25%, using concrete mix of 1:1.5:3 and water/cement ratio of 0.65. Concrete samples were prepared ...
ادامه مطلب