Section 4101.� Portland Cement

 

4101.01���� GENERAL REQUIREMENTS.

 

A.��� ASTM C 150 Cements.

 

1.���� Unless specified otherwise, meet the requirements of ASTM C 150.

 

2.���� Limit the alkali content expressed as total equivalent sodium oxide to no more than 0.60% for all cements.

 

B.��� ASTM C 595 Cements.

Unless specified otherwise, meet the requirements of ASTM C 595 and the following requirements:

 

1.���� Pozzolan constituent of Type IP cement no more than 25 weight (mass) percent of the Portland-pozzolan cement.

 

2.���� Slag constituent of Type IS cement no more than 35 weight (mass) percent of the Portland blast-furnace slag cement.

 

3.���� No Class C fly ash in Type IP cement.

 

4.���� To produce blended cement, use Portland cement meeting the requirements of Article 4101.01, A, but with the alkali content expressed as a total equivalent being no more than 0.75%.

 

5.���� Meet the requirements of Materials I.M. 401 for initial approval of Type IL cement.

 

C.��� Cement Type Usage.

Comply with the following unless specified otherwise:

 

1.���� Type I or Type II cement may be used for pavements, structures, and other applications. Type III cement may be used in precast and prestressed concrete only.

 

2.���� Type IP, Type IS, or Type IL cement may be furnished at the Contractor's option when Type I or Type II cement is specified. Apply the limitations of the following articles:

         2301.02, B.

         2403.02, B.

         2407.02.

         2412.02.

         2413.02.

         2424.02.

         2426.02.

         2507.02.

         2513.02.

         2529.02.

         2530.02.

         2539.02.

 

3.���� Use the same unit volume of Type IP, Type IS, or Type IL cement in the concrete that is specified for Type I or Type II cement.

 

D.��� Lumps in Cement.

Cement which contains 5.0% or more of lumps retained on a No. 20 (850 �m) sieve will be rejected. Cement which contains less than 1.0% of lumps may be used without adjustment in the batch. Cement which contains from 1.0% to 5.0% of lumps, will have the batch weights (mass) of cement used increased by 2.0% of the original value for each 1.0% or fraction of 1.0%.

 

E.��� Air Entrainment.

Accomplish by the addition, at the time of mixing, of an approved air entraining admixture specified in Section 4103. Do not use air entraining cement.

 

4101.02���� ACCEPTANCE AND INSPECTION.

Use Portland cement manufactured, inspected, tested, and accepted according to Materials I.M. 401. Use Portland cement according to Materials I.M. 401.

 

4101.03���� LIMITATIONS.

Cement will be tested for lumps before being used if it has been stored:

         At the work site or in local warehouses for more than 60 calendar days, or

         In the producer's silo for more than one year.