Jun 02 2016 · Many studies have examined the influence of the partial replacement of fine aggregate in concrete using crusher dusts or small crushed sand samples on concrete properties 81213 However little work has been performed on the complete replacement of natural fine aggregate inGet Price
Feeding Size: Less than 190mm
Discharging Size: 5-10mm
Production Capacity: 12-1000TPH
Feeding Size: ≤25-≤100mm
Production Capacity: 5-100t/h
Applied Materials: River gravel, iron ore, limestone, quartz, granite and other medium or hard ores and rocks.
Processing Capacity: depending on specific situation
Processed Materials: Copper, zinc, nickel, gold and other nonferrous metals, coarse and fine separation of nonmetals like coal, fluorite and talc.
Main Equipment : Jaw crusher, hammer crusher, ball mill, classifier, magnetic separator, flotation cell, thickener, dryer, etc.
Liner: High chrome or ceramic
Processing Ability: 0.05–15TPH
Reference Power: 2.2–75kw
Feeding Size: ≤267mm
Production Capacity: 18-725TPH
Application Fields: Quarry, concrete mixing station, dry mixed mortar, power plant desulfurization, quartz sand, etc.
Materials: Coal ash, pulverized coal, coke powder, iron power, scrap iron, sinter, carbon dust, powdered carbon, slag, gypsum, tailing, slurry, kaolin, active carbon, coke breeze etc.
The effects of crusher and rock type on the aggregate shape The results are presented according to the rock type and crusher type in Table 2 However investigating data of Table 2 is tedious and confusing and its best to investigate with statistical and graphical methodsMore Detail
The grading and maximum size of aggregates is important parameters in any concrete mix They affect relative proportions in mix workability economy porosity and shrinkage of concrete etc Experience has shown that very fine sands or very coarse sands are objectionable – the former is uneconomical the latter gives harsh unworkable mixesMore Detail
The source and type of the natural aggregates used in the production of the concrete were the same as those used in previous studies and are those presently used in the production of a commercial High Performance Concrete in a Spanish precast concrete company The natural fine aggregates employed were two river sands which were mainly composed of silicates divided into two different particleMore Detail
Also the effects of silica and crushed sands using different values of sand equivalent and passing No 200 sieve on water demands of mortar were investigated A strong correlation was found between the sand equivalent and fine materials passing No 200 for silica sand whereas there was no correlation for the crushed sandMore Detail
Sand Equivalent Value of Soils and Fine Aggregate • Categories of Soils based on Particle Size o Coarse aggregate o Fine aggregate o Silt sieve 200 size 0075 o Clay • Clay like material are small particles in the size of clay particles that are deleterious to asphalt concreteMore Detail
This paper presents the experimental results of recycled coarse aggregate concrete and results are compared with the natural crushed aggregate concrete The fine aggregate used in the concrete ie recycled and conventional is 100 percent natural The recycled aggregate are collected from four sources all demolished structuresMore Detail
FINE AGGREGATES Section 90402 defines the acceptable limits for all uses of fine aggregates Fine aggregates are not divided into classes The quality ratings assigned to fine aggregates regarding their approval for use on highway construction contracts are A5 approved for all uses B5 approved for all uses where manufactured fine aggregate isMore Detail
Aggregate is a granular material such as sand gravel crushed stone crushed hydrauliccement concrete or iron blastfurnace slag used with a hydraulic cementing medium to produce either concrete or mortar Those particles that are predominantly retained on the 475 mm No 4 sieve are called coarse aggregates Those particles passing the 95 mm 38 inchMore Detail
Physical Properties of Aggregates 4 Coarse Aggregate Angularity • Measured on 475 mm material • Based on fractured faces – fractured surface larger than 25 of aspect ratio • ASTM D 5821 • Specification requirements depend on – depth of layer within pavementMore Detail