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What is the allowable height to freely drop concrete?

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Question added by Mohamed Refaat , Projects Engineer , ABDULLAH ABDULGHANI & BROS. CO
Date Posted: 2017/04/24
Shaik Nayeemuddin
by Shaik Nayeemuddin , Senior Site Engineer , vertexhomes private limited

The allowable height to freely drop the concrete to avoid the segregate is not morethan a meter

ganiyu majolagbe
by ganiyu majolagbe , Electrical Engineer , TEAWOO LIGHTING & POWER LIMITED

the allowable height to freely drop not beyond 1meter 

Mudassir Pasha
by Mudassir Pasha , Senior Project Manager , Public Services Department

Maximum allowable height of pouring concrete from the hose of boom is not more than 1 meter. 

marwan Abuhasan
by marwan Abuhasan , design for fit out company using revit and autocad , Asl al ibdaa technical services

According to the American concrete institute ACI article 301 concrete shouldn't free fall more than 3 to 5 feet in a single pour to avoid segregation about 90 to 150 centimeters .

Muhammad Farooq
by Muhammad Farooq , QA-QC MANAGER , AL Bawani contracting co.

It is better to drop concrete the as much close the pouring location but shall not be more than1 meter

Sharafatullah Khan
by Sharafatullah Khan , Qa/qc Civil Inspector , Consultant HSS

1.5 meter to avoid segregation

Vinay Kumar Singh
by Vinay Kumar Singh , Senior Manager Design , OAKRIDGE ENERGY PRIVATE LIMITED

As per ACI 301 its  3- to 5-foot limit.

Engshams Civil
by Engshams Civil , مهندس مدني عام , مكتب هندسي

Maximum allowable height for concrete casting (2)m

hisham abu dagga
by hisham abu dagga , Project Manager / مدير مشاريع , مؤسسة عبدالكريم العواض للمقاولات

Thank you for the invitation

Agreed with colleagues

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