Nominal size(mm) 20.00 20.00 2 Specific gravity 2.72 2.69 3 Bulk density in kg/m³ 1710 1640 5 Impact value 18.30% 21.10% 6 Crushing value 21.10% 22.20% 7 Water absorption 0.50% 2.50% C. Fine Aggregate The shape and surface texture of fine aggregate has a greater influence on water demand of concrete because fine aggregates contain a much ...
Gradation Requirements: Coarse Aggregate for Concrete (1) For these, and for class A concrete used for pavement, ensure that at least 50 percent of the material retained on the No. 4 [4.75 mm] sieve has at least one fractured face. Sieve Classes A & B (1) Class S (1) PCCP 2 ½ in - - - 2 in - - - 1 ½ in 100 - 100 1 in 95-100 100 95-100 ¾ in ...
Section 3 Specification 3.2 Aggregate Production and Stockpiling 22 JAN 01 4 TABLE 3.2.3.2(B) SIEVES IN ACCORDANCE WITH: AASHTO DESIGNATION: M 92 ASTM DESIGNATION: E 11 METRIC SIEVES IN ACCORDANCE WITH: CGSB SPEC. 8-GP-2M (U.S. STANDARD SERIES) (OPENING AND DESIGNATION) 125.0 mm 5" 125 000
(Recycling Coarse Aggregate) Vinod Kumar Kumawat, Brijesh Kumar, Mayank Kumar Mehra, ... 3 20 mm 3600 3600 72 4 12.5 mm 1200 4800 96 5 10 mm 150 4950 99 6 4.75 mm 50 5000 100 7 2.36 mm 0 5000 100 8 PAN 0 5000 100 ∑ 𝐶= 567 Fineness Modulus ( ∑ 𝐶/100) 5.67 ABLE 2. SPECIFIC G ...
04/20/2021 General . The Innocuous Aggregate Prequalification Program establishes procedures to ensure that aggregate meets the requirement of Section 90-1.02C (Aggregate) in Caltrans' Standard Specifications, that both the fine and coarse aggregate must be on the Authorized Materials List (AML) for the aggregate used in
Sub-base transfer layer: 4-20 mm coarse graded angular aggregate to BS EN 13242:2002 (not crushed concrete). Sub-base main drainage layer: 4-40 mm... Read more. Castle Hill Quarry Co Ltd. All Limestones, Aggregates, Feed grade, Agricultural plus Sand and Shingle. To Trade and Public Ex Quarry and ... 4-20 mm Down · 4-10 mm Course Aggregate...
Jul 01, 2009· Comparing the natural coarse aggregate to the recycled one, a wear increase between 26% for the CNA (4/10 mm) and 44% for the CNA (10/20 mm) was observed. As it was indicated above, Table 3 shows the results of the tests for adhered mortar in the recycled aggregates.
Gradation Requirements: Coarse Aggregate for Concrete (1) For these, and for class A concrete used for pavement, ensure that at least 50 percent of the material retained on the No. 4 [4.75 mm] sieve has at least one fractured face. Sieve Classes A & B (1) Class S (1) PCCP 2 ½ in - - - 2 in - - - 1 ½ in 100 - 100 1 in 95-100 100 95-100 ¾ in ...
2. aggregate size: the designation of aggregate in terms of lower (d) and upper (D) sieve sizes expressed as d/D. Coarse aggregates range from 4mm to 80mm, Fine aggregates from 0 to 4mm and All-in aggregates are a combination of the two. e.g. coarse 20/40, fine 0/4, all-in 0/31.5.
20/40mm Coarse Aggregate. Single sized and graded coarse aggregates including: crushed limestone, crushed granite, crushed gritstone, crushed & uncrushed gravel and secondary aggregates. Can be used in concrete and asphalt production, civil engineering (pipe bedding and surround, filter media) and for decorative uses. 20/32.5mm Coarse Aggregate.
plastics for use as coarse aggregate in concrete and the details by which they are selected are discussed. Few tests ... are many recycling plan across the world which recycles plastics, but the strength of plastics cannot be maintain. All ... 003 8.108 23.4 2.88 20%plastic 201 7.565 31.5 4.17 4.07 202 7.610 29.3 3.85
Consists of: Pure crushed Limestone, Granite, Basalt or Gritstone depending on source ranging in size from 4-20mm. This product is now widely used as a bedding layer for block paving applications where a SuDS compliant bedding layer is required. This product is not sold as being any particular colour and the picture is offered as an example only.
216.4 20.3 0.50 38.8 78.8 45.1 GP Portland Cement GB Portland Cement Recycled Glass Powder (RGP) Recycled Glass Sand (RGS) Coarse Sand Fine Sand 20 mm Aggregate Life Cycle Analysis: Economic Benefit Cost of Materials ($/tonne)
Recycling Coarse Aggregate 4/20-India Crusher&Mill. seminar slide on recycling aggregate. the cross timbers is, or are (as the grammatical case may be), some of … Learn More aggregates | Engineering Library - [email protected] | Nanyang
Two conventional graded aggregate base (GAB) materials and two recycled concrete aggregate materials were used in the current study. GAB materials contain coarse and fine aggregate particles as well as fines (clay and silt). Generally, the ratio between coarse and fine aggregate particles varies between 1:1 and 7:3.
In the (20%, 50% and ) mixes, the total coarse aggregate was considered as the joint of gravel 4/10 mm, gravel 10/20 mm and recycled aggregate, for the grading curve adjustment. The calculation of proportions of each coarse aggregate was carried out maintaining a costant ratio of gravel 10/20 mm / gravel 4/10 mm and taking into account 2935
Coarse Aggregate (RCA) with the Natural Coarse Aggregate (NCA) for the determination of structural property and also the cement replaced by the byproducts of the solid waste materials like micro silica and fly ash. The replacement of Recycled Coarse Aggregate (RCA) with Natural Coarse Aggregate (NCA) is upto 60% with the interval of 20%.
Recycled coarse aggregate (RCA) is produced by crushing the demolition waste from concrete structures. ... 20% of norm al aggr egates can be . ... It is concluded that recycling concrete for use ...
Hydraulically Bound Materials (HBMs) are soils or aggregates that have a binder such as cement, lime-based binders, gypsum or fly ash added, which then hardens by a chemical / hydraulic reaction with water. Our Hydraulically Bound Materials (HBMs) are made using recycled material and cement to produce a (CBGM) Cement Bound Granular Material and ...
Nov 19, 2015· Recycling of Glass in Concrete - written by Ram Bhupal Reddy A, Rajeswari A, Vinay Kumar M published on 2015/11/19 download full article with reference data and citations
Aug 27, 2017· Lecture 4, constituents of concrete-coarse aggregate. 1. Constituents of concrete-Coarse Aggregate Presented by: H.M.A.Mahzuz. 2. Aggregates 08/27/17 CE- Properties of Concrete 2 Granular materials, such as sand, gravel, crushed stone used with cementing medium to …
Jan 01, 2017· Table 4.2.3 Unit weight, specific gravity, absorption capacity, moisture content of course aggregate. (Appx. No: 4.3.3-4.3.4) Coarse Aggregate Unit Weight (kg/m3) Specific gravity Absorption capacity, % Moisture content, % Recycled 1235 2.14 8.64 1.70 Fresh 1628 2.73 0.70 2.06 Table 4.2.4 Recycled Aggregate Concrete Mix Design for Concrete ...
Coarse aggregate shall be that portion of the mineral aggregate retained on a No. 4 sieve. Fine aggregate shall be that portion of the mineral aggregate passing a No 4 sieve. At least 90% by weight of the material retained on the No. 4 sieve shall consist of crushed particles. ... 4/20/2006 8:15:00 PM
1 concrete containing recycled concrete aggregate for use in concrete pavement by patrick amoah bekoe a thesis presented to the graduate school
recycling coarse aggregate 4 20 . recycling coarse aggregate 4 20. Providing brand recognition through our innovative products! Effect of Flyash on Recycle Coarse Aggregate Concrete. Recycling of concrete is a relatively simple process. It involves breaking, removing, and crushing existing concrete into a material with a Contact Supplier ...
4. Soak the coarse aggregates material for at l east 48 hours and remove it from the water for at least 45 minutes before weighing. 5. Based on the mix design, batch the coarse aggregate, fine aggregate, coarse RCA, fine RCA, cement and water using a weighing scale as shown in Figure 3-9. 6.
Jul 07, 2015· Coarse: Fine aggregate = 1:1.4) MOISTURE BINDER AGGREGATE CONTENT PC WSA-GGBS Coarse Fine % % (grams) % (grams) (grams) (grams) 50:50 4 0 0.0 100 25.2 158 221 50:50 4 10 2.5 90 22.7 158 221 50:50 4 20 5.0 80 20.2 158 221 50:50 5 0 0.0 100 24.9 156 218 50:50 5 10 2.5 90 22.4 156 218 50:50 5 20 5.0 80 20.0 156 218 50:50 6 0 0.0 100 24.7 154 216 ...
Figure 4.20: Stress distribution for case 2 beam size 1 - "Mechanical Properties of Recycled Aggregate Concrete under Different Loading Rates"