1405 - BURLAP 1400 - 6
1405.1 Description
This specification covers new and us ed burlap for use in curing concrete.
1405.2 Requirements
a. General. Provide material which complies with AASHTO M 182, Class 3 (10 oz/yd) with the following additions:
1.Manila hemp may also be used to make burlap.
2.Burlap fabricated from bags may not be used.
3.Burlap may not contain any water soluble ingredient which will retard the setting time of portland cement concrete. b. Used Burlap. Used burlap must comply with the requirements stated above, and can only have been used previously for curing concrete. "Like new" cleanliness is not expected, but contamination with any substance foreign to the concrete curing process (e.g. grease or oil) will be cause for rejection.
1405.3 Test Methods
As specified in AASHTO M 182.
1405.4 Prequalification
None Required
1405.5 Basis of Acceptance
a. New burlap will be accepted on the basis receipt and approval of a Type D certif ication as specified in
Division 2600 — and a visual inspection for compliance with AASHTO M 182.
b. Used burlap will be accepted on the basis of a Contractor certification regarding the source and previous use of the material, and a visual inspection for compliance with AASHTO M 182.
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Source: Standard Specifications for State Road and Bridge Construction, 2015 Edition. Pages 726–726 of 978. View official source ↗