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Aug 11 2018 · Typically the most common size of aggregate used in construction is 20mm A larger size 40mm is more common in mass concrete Larger aggregate diameters reduce the quantity of cement and water needed because of its lower Voids When the aggregate is sieved through 475mm sieve the aggregate retained is called coarse aggregate... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.
Configuration:Lime kiln, coal mill, cooling machine, jaw crusher, vibrating feeder, etc.
Capacity:150-600TPH Specification:Φ2.5×40~Φ4.8x68m
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Diamond reserves and production of South Africa are in the front rank of the world. Large-scale development and utilization of diamonds result in production of a large number of diamond wastes. Resource utilization of diamond waste can turn waste into tre
Processing capacity: 30-50 t/hApplied material: diamond waste
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Stone crusher plant whose design production capacity is 50-800T/H is mainly composed of vibrator feeder, jaw crusher, impact crusher, vibrating screen, belt conveyor, centralized electronic control and other equipment. Configuration of cone crusher and du
Processing capacity: 50-800 t/hApplied material: limestone, fly ash
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Main Equipment:Jaw crusher, impact crusher, hammer crusher, vibrating screen, classifier, ball mill, etc.
Brand Name: Fote Machinery Application:Ore concentrate/separator plant
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The larger sizes will require less mixing water and hence for a given cement factor will produce concrete of lower waterratio than the smaller sizes 3 The advantage of small aggregate in the waterratio strength relationship may or may not be sufficient to
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This study investigates the effect of aggregate size on the compressive strength of concrete Two nominal mixes that is 124 and 136 were used in the study
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Also the results show that the compressive strength increases with increasing aggregate size up to 125 mm while the concrete produced using 20 mm had greater compressive strength than those produced using 25 mm aggregate This established the importance of ensuring that the right aggregate size is used in the production of concrete
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The results demonstrate a significant influence of the aggregate size on the fracture behaviour of concrete There is a direct relationship between the size effect parameters obtained by Bazants law and maximum aggregate size The results obtained from the specimen having the same size but made of concretes with different aggregate sizes
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Mar 23 2015 · In general for strength upto 200 kgcm 2 aggregates upto 40 mm may be used and for strength above 300 kgcm 2 aggregate upto 20 mm may be used Conditions That Decide Maximum Size of Coarse Aggregate to be Used in Concrete The following conditions decide the maximum size of coarse aggregate to be used in concrete
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Coarse aggregate may be available in several different size groups such as 19 to 475 mm 34 in to No 4 or 375 to 19 mm 112 to 34 in ASTM C 33 “Standard Specifications for Concrete Aggre gates” lists several such size groups using the simplified
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The concrete mixtures incorporate either basalt or crushed limestone aggregate sizes of 12 mm h in or 19 mm Y in and coarse aggregate contents with aggregate volume factors ACI 211191 of075 and 067 Watertocementitious material ratios range from 024 to 050
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Quality Counts Make sure that your concrete producer purchases goodquality 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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Perception Well if you relate the strength of concrete with the size of aggregates only then it is not justifiable because strength of cement concrete also depends upon watercement ratio The concrete which is having more watercement ratio wi
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