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If on-site slump test fails, should engineers allow the contractor to continue the concreting works?
In case of a dry sample, slump will be in the range of 25-50 mm. But in case of a wet concrete, the slump may vary from 150-175 mm. So the value of slump is specifically mentioned along the mix design and thus it should be checked as per local location.
Recommended slumps:
Reinforced foundation walls and footings:
a. Maximum Slump 75mm
b. Minimum Slump 25mm
Plain footings, caissons, and substructure walls:
a. Maximum Slump 75mm
b. Minimum Slump 25mm
Beams and reinforced walls:
a. Maximum Slump 100mm
b. Minimum Slump 25mm
Building columns:
a. Maximum Slump 100mm
b. Minimum Slump 25mm
Pavements and slabs:
a. Maximum Slump 75mm
b. Minimum Slump 25 mm
Mass Concrete Mix:
a. Maximum Slump 75mm
b. Minimum Slump 25mm
maximum 125cm minimum 75cm
maximum 100cm minimum 75cm
It varies from country to country and also depends on the type of the of buildings
you should follow the condition of your country
a. Maximum Slump 75mm
b. Minimum Slump 25mm
gernal concrete slump 75 cm +-25 cm with out pump concrete if add chemical then depend on concrete desgine
for all structure elements : maximum 75mm and minimum 25mm
but beams,columns and walls : maximum 100mm and minimum 25mm
If it's consolidated any other way, the slump should be 5 inches or less.
100 + & - 25
max 125 mm
min 75 mm
