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What should be the standard Roof height?
DevilAVRT
Generally, Residential bldgs are given 10ft roof height. If the false ceiling is provided, then the height is from 10.5 - 11ft. For commercial bldg, it is 10 - 12ft.
Generally, Residential bldgs are given 10ft roof height. If the false ceiling is provided, then the height is from 10.5 – 11ft.
For commercial bldg, it is 10 – 12ft.
See lessWhat should one do if the slump test fails for a given concrete?
Himanshu joshi
If slump results from test show shear or collapsible slump, then it should be rejected, and the test should be repeated. Now, if at site RMC is used and slump results are not satisfactory, then we can manage the water-cement ratio by adding more cement content, which will increase strength. Also, weRead more
If slump results from test show shear or collapsible slump, then it should be rejected, and the test should be repeated.
See lessNow, if at site RMC is used and slump results are not satisfactory, then we can manage the water-cement ratio by adding more cement content, which will increase strength.
Also, we can use admixtures such as plasticizers or superplasticizer to maintain workability of concrete.
What is the meaning of Defect Liability Period(DLP)?
Emmyvin
Defect Liability period is a particular amount of time given to the contractor after the completion of a project to check if the project is delivered in good shape, whereby if any defects be detected, the contractor is to fix the defect for free during the defect liability period.
Defect Liability period is a particular amount of time given to the contractor after the completion of a project to check if the project is delivered in good shape, whereby if any defects be detected, the contractor is to fix the defect for free during the defect liability period.
See lessWhat are the responsibilities of a construction manager?
DevilAVRT
• Cost Estimates • Purchase of selected materials before the construction is to start • Selection of bidders • Analysis of proposals • Contract negotiations • Scheduling and Monitoring • Control on the cost of construction • Supervision of construction work
• Cost Estimates
See less• Purchase of selected materials before the construction is to start
• Selection of bidders
• Analysis of proposals
• Contract negotiations
• Scheduling and Monitoring
• Control on the cost of construction
• Supervision of construction work
How we can reduce wastage of Concrete during pumping of concrete?
DevilAVRT
Estimate pouring speed and match it production speed to avoid waiting and approaching it's setting time, keep home work-ready with trials for options (e.g., redosing with SP) for reusing leftover concrete, inform Batching plant when 10% of the pour is balanced and reduce trucks carrying concrete theRead more
Estimate pouring speed and match it production speed to avoid waiting and approaching it’s setting time, keep home work-ready with trials for options (e.g., redosing with SP) for reusing leftover concrete, inform Batching plant when 10% of the pour is balanced and reduce trucks carrying concrete thereafter, explore the scope for casting precast blocks from leftover / used in testing, etc. concrete,
Deploy a supervisor to be in touch with Batching Plant from site to hold or slow down concrete supply if there is any issue at the site, keep critical spare parts of Concrete Pumps, etc. available at site 24 x 7, deploy an experienced Pump operator and a Concrete specialist at the site
1. Small precast forms(curbs, drain slabs, etc., which are needed in the project) to be kept ready at the site near the RMC pouring area fresh concrete waste needs to be handled into these forms. Optimum labor to be maintained to handle these operations.
2. Retrieve the aggregates by washing off the waste concrete.
3. Order the right quantity of concrete required to finish the pour, hence reducing the wastage.
4. Have at least one spare pump at the site when pouring a large quantity of concrete.
5. Have the right waste concrete segregation pits at RMC plants to wash the wet concrete and to retrieve the coarse aggregates.
See lessWhat is the percentage of fineness content in OPC for construction works?
CB Sowmya
As per IS code provisions, the fineness of cement is calculated by sieving 100 grams of the cement sample in a 90-micron sieve. The weight s the cement-retained on the sieve is taken. Fineness of cement = Percentage retained = (Weight retained / weight taken) x 100 A good cement should have the percRead more
As per IS code provisions, the fineness of cement is calculated by sieving 100 grams of the cement sample in a 90-micron sieve. The weight s the cement-retained on the sieve is taken.
Fineness of cement = Percentage retained = (Weight retained / weight taken) x 100
A good cement should have the percentage retained not more than 10%.
The same is applicable to OPC as well.
See lessWhat is the important of Proctor Compaction Test?
INDER KUMAR YADAV
importance of proctor compaction test to understand the compaction characteristic of different soil with the change in the moisture content. to determine the optimum moisture content at which the given soil become most dense and has maximum dry density In this test, the soil is compacted in the voluRead more
importance of proctor compaction test
In this test,
the soil is compacted in the volume of 945-millimeter cube, and the number of layers is 3, and the hammer weight is 2.45 kg, and the height of the fall is 12 inches.
See lessWhat is the CBR value for sub grade in rigid pavement road construction?
Kuldeep Singh
Rigid pavements because of their nature, allow for a larger variation in subgrade material (in terms of strength), unlike flexible pavements. That is why rigid pavements can be built over almost any kind of soils with appropriate ground improvement. The general range for CBR is 2% to 14% or 15%. IfRead more
Rigid pavements because of their nature, allow for a larger variation in subgrade material (in terms of strength), unlike flexible pavements. That is why rigid pavements can be built over almost any kind of soils with appropriate ground improvement.
The general range for CBR is 2% to 14% or 15%. If it is found below 6%, then the code specifies some necessary subgrade improvement before laying the concrete slab directly over it.
Also, the CBR could be increased up to say 40% or 50% by ground improvement, and still, the subgrade may be fit for rigid pavements.
See less