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1 The MB value of dry sand making machine made sand is lower than that of ordinary craft made sand and the dry made sand making machine has a better sand grain shape so that the workability of concrete with two strength grades of C30 and C55 prepared by dry made sand making machine made sand is better than that of ordinary craftsmanship
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Sand from Son river is very good It depletes However all said and done The spherical shape of river sand gives it the advantage of higher workability for same water content Say the use of results in increase of water demand by 20 litres It means increase in cement by 50 kg or admixture dosage by % bwc
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2 Aggregate 1 The fine aggregate is a mixed sand made of machine made sand and iron tailing sand among which machine made sand is made locally in Jinan with a fineness modulus of a stone powder content of less than % and a methylene blue test qualified The iron tailing sand is produced in Changqing area Jinan with a
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Compared with river sand sea sand has its own unique advantages It has low cost good grain shape and low mud content In the future a large amount of reasonable use of sea sand has become an inevitable development trend but sea sand contains more harmful The impurities have a certain impact on the durability of concrete
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But not all sand is the same as some have rocks and impurities that make them less resistant and stable for use in construction The main types of sand used in construction range from concrete sand to pit sand natural or river sand manufactured sand M sand utility sand and fill sand These types of sands have unique properties that make
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broadband light therapy machine Set the gauge onto the handrail and trace the rounded shape onto the handrail Repeat for the opposite end of the rail Cut the handrail to length with a jigsaw Repeat to make an identical bottom rail Use table saw to rip ⅜ inch thick x 1½ inch wide nailing strips from a cedar 2x4
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For medium and low grade pumping concrete the mixed concrete workability is better when we replace 30% natural sand with machine made sand and the concrete with 50% substitution rate is relatively poor Even if the dosage of admixture is increased it is still impossible to solve the problem of poor compatibility
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Additionally the water cement ratio has the greatest influence on the 28 day compressive strength The mechanical and working properties of the machine made sand concrete reach the optimum condition when the mineral admixture is 20% the sand rate is 46% the stone powder content is 10% and the water cement ratio is
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#CivilEngineers#CivilMasterDifference Between M sand and River sandwhich sand is better Manufactured sand or River sandUse of River sand Use of M sand in
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Crushed Stone Crushed stone refers to a mixture of rocks and sand Different types are made specifically for driveways with different levels of coarseness colors and sizes Gravel driveways can be made of various materials but the crushed stone is one of the most popular making it an excellent option
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When configuring concrete coarse and medium river sand should be preferred for fine aggregate The fineness modulus of desert sand is usually less than and the finer one has a modulus less than which is ultra fine sand
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Yes M Sand crushed sand can replace 100% river sand in a concrete mix proportion M Sand are manufactured by latest technology Vertical shaft impactor nachines They give at par results in comparison to rivers sand concrete mixes in both fresh and hardened state Since quality control is maintained in the process of preparing manufactured
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Again the best results were obtained for an optimal replacement of 30% of river sand by I sand The hardened concrete property for 100% river sand 100% I sand as well as 30% replacement proportion after 28 days of curing is as given in Table 10 The results suggest that the 30% replacement gives the optimal hardened properties as well
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In addition adding stone powder can also reduce the shrinkage of concrete and compensate for the later hydration water of concrete Because even if the concrete has hardened the water absorbed by stone powder will gradually release Although stone powder plays an important role in machine made sand concrete it is not the more the better
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The artificial sand produced by proper machines can be a better substitute to river sand The sand must be of proper gradation it should have particles from 150 microns to mm in proper proportion Gradation is made in accord with the usage of the sand There are testing sieves consists of 600microns 300
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1 Compared with river sand machine made sand has the characteristics of sharp edges and corners many needle flakes and roughness which can be distinguished from the appearance 2 The firmness of machine made sand is slightly worse than that of river sand but it meets relevant standards 3
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M Sand manufactured sand produced by crushing of hard granite stone MSand is manufactured through the process of shaping cubically grading and cleaning by using VSI machine The size of Manufactured sand is less than the color of M sand is greyish blue to red colour based on type of rock used in crushing
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The cheapest alternative to river sand is M Sand which is produced from high grade rocks to desired size range and grade through several crushing stages Manguriu et al 2024 Jayawardena
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These sands are generally suitable for making concrete for base and sub base and tests have shown that even reinforced concrete could be made from them But the construction industry is extremely reluctant to accept it While sea sand has various advantages such as it is more rounded or cubical like river sand
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Sand made of basalt mixed with retarded concrete reduces the weight of the concrete and provides thermal and acoustic insulation It is a good aggregate for lightweight concrete in high rise buildings The stone powder produced by crushing lime and granite can also be reused These are better alternatives to natural sand 2
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Manufactured sand M Sand is a substitute of river sand for concrete construction Manufactured sand is produced from hard granite stone by crushing The crushed sand is of cubical shape with grounded edges washed and graded to as a construction material The size of manufactured sand M Sand is less than Contents [ show]
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The majority of sand is used to make concrete but the displacement of sand leads to the catastrophic destruction of coastal sea bed and river ecosystems and topography Continue reading below
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These small pebbles have rounded edges and corners due to long term erosion by river water and durability The firmness of machine made sand is slightly worse than that of river sand but there is no problem in using it in ordinary concrete
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Contact Supplier Request a quote Gray Plastering P Sand Grade Double Wash A Grade ₹ 66/ cft Get Quote Brown River Sand For Construction Packaging Type Truck ₹ 95/ Cubic Feet Get Quote Brown Rough River Sand Packaging Type Lorry Packaging Size ₹ 9 500/ Unit Get Quote River Sand
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While there is no silt content in M sand it is usually 5 20% in the case of medium quality river sand We can consider silt content above 3% as unfit for concrete quality Moisture content is also absent in the case of manufactured sand At the same time there is trapped moisture between the particles in the case of river sand
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Three strength grades of concrete C30 C40 and C50 and the contents of stone powder in machine made sand of 5% 9% and 13% in mass were considered in the mix proportion of concrete with machine made sand The ordinary concrete with natural river sand in the same strength grade was tested at the same time for comparison
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The raw materials and production equipment of machine made sand are different and the quality of the machine made sand is different and the river sand is formed for similar reasons and the gradation hardness is not very different so the high quality machine made sand can completely replace the river sand for construction aggregates middle 2
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The concrete sand you mention is mason sand and is actually better for keeping clean just make real sure it doesnt have any polimers or silicon in it because its poisunous to your birds River sand can also have bad things in it so whatever you decide have it checked out for microbials before putting it in your pens Reply Nov 5 2024 Thread starter
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Concrete with m sand has very poor permeability as compared to river sand But when river sand is used in concrete the permeability of concrete is less poor as compared to river sand 11 It has more water absorption 2 to 4 % Whereas water absorption of river sand is less to 3% 12
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