particular specifications (road works) - CIDCO Maharashtra Ltd.

CIDCO OF MAHARASHTRA LTD
C.A.No.01/CIDCO/SE(KHR)/EE(KHR-I)/2010–11 Pg. No. 362
5.11 Test for concrete and concrete making ingredients:
As frequently as the Engineer may require, testing shall be carried out
in the field/approved laboratory for:
1) Concrete cube test.
2) Permeability test for concrete as per DIN
The Contractor shall provide and maintain at all times, until the works
are completed, equipment, Technicians, staff required for carrying out
these tests. The Contractor shall grant the Engineer or his
representative full access to his laboratory at all times and shall
produce on demand complete records of all tests carried out on site.
Before concreting commences on any section of the works contractor
shall obtain approval of the Engineer or his representative as regards
the formwork and reinforcement conforming with the drawings. He
shall also indicate to the Engineer in writing and obtain his approval for
positions of construction joints. The Engineer or his representative’s
approval shall not relieve the Contractor of any of his obligations to
comply with the provisions of this specification or contract.
5.12 ADMIXTURES :
No materials other than the essential ingredients i.e. cement,
aggregates and water, shall ordinarily be used of manufacture of
concrete or mortar. But the Engineer may permit the use of approved
admixtures conforming to IS:9103 for importing special characteristics
to the concrete, on satisfactory evidence that its use does not in any way
adversely affect the properties of concrete particularly its strength,
volume changes, durability an has not deleterious effect on the
reinforcement. The admixtures shall not be paid separately.