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We should abide by the principle of selecting low mobility with the guarantee of construction...
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• We should abide by the principle of selecting low mobility with the guarantee of construction operation and placing densely. §4.3.4 §4.3.4 Selection and Classification Selection and Classification of Composite Slump of Composite Slump Principle Principle Selection Selection • Select mobility according to member cross section, condensing methods and reinforcement spacing.
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Transcript of We should abide by the principle of selecting low mobility with the guarantee of construction...
• We should abide by the principle of selecting low mobility with the guarantee of construction operation and placing densely.
§4.3.4§4.3.4 Selection and Classification Selection and Classification of Composite Slumpof Composite Slump
PrinciplePrinciple
SelectionSelection
• Select mobility according to member cross section, condensing methods and reinforcement spacing.
The high slump in the condition of small cross section, manual condensing and small reinforcement spacing.
Tab4.3.1 Slump selection for concrete Tab4.3.1 Slump selection for concrete structure (vibrated by machine)structure (vibrated by machine)
Slump
(mm)Type Application
>160Large
viscidity
Pumping concrete, structures with narrow transact and reinforcing steel
bar distributed especially densely
100-150 ViscidityPumping concrete, structures with
narrow transact and reinforcing steel bar distributed densely
50-90 Plasticity Normal concrete structure
10-40Low
plasticityVibrate intensely, prefabricate member, base and steel in less thick structure
