What is density of bitumen?
Density of bitumen is between 1.01 to 1.06 (Kg/dm3) It means that 1.010kg to 1.060kg is one desi cubic meter. Each tons of asphalt needed 70Kg Bitumen and the rest is aggregates.
What is dense bitumen macadam?
Dense Bituminous Macadam (DBM) is a binder course used for roads with more number of heavy commercial vehicles and a close-graded premix material having a voids content of 5-10 per cent.
What is the density of bituminous concrete?
Concrete, Asphalt weighs 2.243 gram per cubic centimeter or 2 243 kilogram per cubic meter, i.e. density of concrete, Asphalt is equal to 2 243 kg/m³….Concrete, Asphalt density values, grouped by weight and shown as value of density, unit of density.
| 2.24 | g/cm³ |
|---|---|
| 2 243 000 | g/m³ |
| 0 | g/mm³ |
| 1 714 896.55 | g/yd³ |
| 2 243 | g/l |
What is the difference between bituminous macadam and dense bituminous macadam?
Bituminous Macadam (BM) The void content is 20 to 25% higher than the dense graded bitumen (DBM). The DBM have a void content of 3 to 5%. The BM have high potential to attract water and moisture.
What is premix macadam?
Premix Carpet (PMC) is an open graded bituminous mix which is widely used as an overlay on urban sections and as a surface course on rural roads in India.
What is PQC?
Pavement Quality Concrete (PQC) is cement concrete made with large size aggregates in accordance with IRC specifications and laid over a dry lean concrete sub-base. This construction is used specifically for highway concrete pavements and for airport runway pavements as it can take heavy loads.
What is PQC quality?
PQC is the construction QA/QC project management and collaboration software with organizational strategic benefits such as: Personnel and resource management. Workflow monitoring. Testing approvals. Advanced data filtering.
What is difference between PQC and DLC?
Plain quality concrete (PQC) & Dry lean concrete (DLC) both terms are related to highway pavements. In the case of rigid pavements, wheel loads are transferred to sub-grade soil by flexural strength of the pavement and the pavement acts as a rigid plate (e.g. cement concrete roads).
What is GSB road?
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.
How is GSB laid?
The GSB Material is spread with the help of motor grader on the approved layer of Sub-grade in single layer of 200 mm with Grading either IV or V. During spreading and mixing by grader in site, water is sprinkled over the material by water browser mounted on water tanker.
What is GSB and WMM?
WMM = Wet Mix Macadam (40 mm down aggregates, mix design required) GSB = Granular Sub Base (63 – 40 mm aggregate or 70mm down aggregates) SR = Soil Replacement (preferably quary materials)
What is the size of GSB?
GSB :- Granular sub base or GSB is a typical layer adopted in highway construction, which is laid above the subgrade and below the crust materials. Naturally available material consisting of various grades may be used for GSB, the largest grain size up to 65mm.
What is full form of GSB?
| GSB | Graduate School of Business Academic & Science » Universities | Rate it: |
|---|---|---|
| GSB | Gold Silver Bronze Miscellaneous » Unclassified | Rate it: |
| GSB | Government of the Student Body Academic & Science » Students | Rate it: |
| GSB | Graduate School of Banking Business » Banking | Rate it: |
| GSB | Government Supply Brokerage Governmental | Rate it: |
What is the density of GSB material?
2.1 g/cc
What is GSB material?
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. GSB layer is laid in roads and higway works due to its properties .
What is BM and BC Road?
Method Statement For Laying of Binder Coarse (BC), Dense Bituminous Macadam (DBM), Bituminous Macadam (BM) for the main carriageway and Semi Dense Bituminous Macadam (SDBM) for the service roads.
What is WMM layer?
Wet Mix Macadam laying method contains of laying spreading and compacting of clean, crushed, well-graded granular materials on a prepared and Granular sub-Base. Wet Mixed Macadam (WMM) Base thickness of single compacted should not be less than 75 mm. WMM shall be laid in layers of 75mm or 100mm as per thickness.
What is the purpose of WMM?
WMM mix is produced by Well controlled Pug Mill type plant and the WMM material is Designed product and purpose of WMM is to resist water to reach upper DBM or DGBM layer. 2. and purpose of GSB layer is either As filter layer or as Drainage Layer to let the water out of Layer.
Why WMM is used?
The WMM roads are said to be more durable. The WMM roads get dry fast and can be opened for traffic within less time as compared to the WBM roads, which take about one month for getting dry. WMM roads are soon-ready to be blacktopped with the Bituminous layers. WMM roads are constructed at a faster rate.
What is density of WMM?
GSB WMM Crushed Mix Stone Aggregate for Paths
| Bulk Density | 1520 to 1680 Kg/ Cubic m |
|---|---|
| Usage/Application | Driveways, Paths, Borders, Landscaping, Ground Cover, RMC |
| Water Absorption | 2.4% |
| Specific Gravity | 2.4 to 3 |