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In pcc roads/streets can 1;2:4 concrete be laid immediately after laying lean concrete 1;4;8 ?

Civil Engineering Project Management
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Question added by Muhammad Khalil , Chief Engineer (Civil) , Water and Sanitation Services Mardan
Date Posted: 2016/06/18
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sanjay kulkarni
by sanjay kulkarni , engineer , Agricultral produce market committee

Curing  of 1:4:8 is must or to have immediate laying 1:2:4 or any higher conc.mix lay layer of thin plastic/p.v.c. to avoid seepage of water .As or otherwise it is going to reduce strength of main course. 

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