How can I check my GSB gradation?
In a gradation and size analysis, a sample of dry aggregate of known weight is separated through a series of sieves with progressively smaller openings. Once separated, the weight of particles retained on each sieve is measured (Figure 2) and compared to the total sample weight.
Is code for GSB gradation?
Grading for Granular Sub-base Materials (GSB) (Grading – IV) IS:2386 (Part-I)
What is the compaction factor for GSB?
Specified compaction for GSB – 98 \% of MDD (MDD by IS 2720 Part – 8). There is a possibility of getting a higher compaction which results normally upto 104\% due to the presence of coarse crushed material.
What is the density of GSB?
2.1 g/cc
Granular Sub Base (GSB) Road Material, Packaging Size: 50 kg
| Usage/Application | For Construction |
|---|---|
| Packaging Size | 50 Kg |
| Density | 2.1 g/cc |
What is GSB size?
Granular Sub Base (GSB) Road Material, Packaging Size: 50 kg
| Usage/Application | For Construction |
|---|---|
| Packaging Size | 50 Kg |
| Density | 2.1 g/cc |
What is GSB in road construction?
Granular Sub Base (GSB) is natural or designed construction material, used for road construction as a sub-base layer. Granular Sub Base is a layer in road foundation just above the compacted sub-grade layer.
What is GSB layer in concrete?
Granular Sub-base (GSB) consists of laying and compacting well graded material on prepared sub-grade in accordance with the specifications.: GSB layer is intermediate layer in between Sub-grade and Wet mix macadam.
How do you grade GSB material?
The material shall be blended at source/crusher to achieve the specified gradation. This shall be jointly checked at the site for conformance to gradation and other tests as defined in section 900 of MORTH. Mark the lines of GSB with lime powder or pegs on the completed subgrade.
What are the quality control tests for GSB?
The Quality control tests shall be conducted on the material at the source prior transportation and at the GSB location after the completion of compaction operation. Following tests are pertinent to GSB. Loading Granular Sub Base (GSB) is natural or designed construction material, used for road construction as a sub-base layer.