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simple observation to avoid wastage of asphalt mix.
Confirm the weather, temp. of mix should be not ess than 140º Celcius at site before laying.
ensure loose particles/foregin materials removed from the laying area
Ensure all equipments are in good condition
Check Whether report and condition: temperature, rain, fog
proper spreading of MC 70 without any dust, or water
checking the machinery maintenance record and make sure no oil leak
proper safety condition at the site
Always watch for the weather condition, check everything you need if they are in place otherwise these will cause a delay, because the damages will be charge against you.
safety precations,weather condition,ensure clean area,all equipments are ok, then mc or rc spray.
1- check the compaction of subase.
2- applied and rate of mc-1
3- survyes
First we should see having road level given by Surveyor then see MC spray on wet mix . See the road should be compressed. Further see the road if any place pumping dig the pumping place and ok then start the asphalt work with fever machine .
IT IS BETTER FOR YOU TO CHECK WITH THE WEATHER FIRST BEFORE REQUESTING THE HOT MIX ASPHALT. SEE TO IT THAT EVERYTHING YOU NEED ON SITE IS READY AND PREPARED OTHERWISE THE DAMAGES WILL BE CHARGE AGAINST YOU.
The final factor is the temperature of the hot mix asphalt (HMA) during the compaction process. ... Mix should be delivered to the paving site at a temperature of at least250°F for a Marshall ... Both compactors were observed at various times500 feet to1,000 feet behind the paver. ... 140º Celcius minimum at site before laying.
Climatic condition, ensure the that temperature is not high....
Ensure everything thing is ready before requesting to avoid delay.
main factors to be considered before requesting delivery is the weather conditions . even if the HMA meets the requirements if the weather condition is worse we cannot pave the asphalt . secondly the road surface should be cleaned using a compressor to remove dust and gravel particles on the road . this should be done before mc 1 and later before paving . then comes all other factors of HMA
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