SECTION 802 ADMIXTURES FOR CONCRETE
802.01 REQUIREMENTS. Provide admixtures conforming to the following
requirements:
802.01.01 Air-Entraining. ASTM C260, except the chloride content (as Cl) shall not
exceed one percent by weight. The Department may require tests for bleeding, time of setting, and length change.
802.01.02 Water-Reducing and Retarding. ASTM C494, Type D, except the relative
durability factor shall not be less than 90 and the chloride content (as Cl) shall not exceed one percent by weight.
802.01.03 Water-Reducing. ASTM C494, Type A, except the relative durability
factor shall not be less than 90 and the chloride content (as Cl) shall not exceed one percent by weight.
802.01.04 Water-Reducing and Accelerating. ASTM C494, Type E, except the
relative durability factor shall not be less than 90 and the chloride content (as Cl) shall not exceed one percent by weight. Use water reducing and accelerating admixture only when the Engineer has reviewed proposed procedures for mixing, handling, and placing the concrete, and has given written permission to proceed.
802.01.05 Water-Reducing, High Range. ASTM C494, Type F, except the relative
durability factor shall not be less than 90 and the chloride content (as Cl) shall not exceed one percent by weight.
802.01.06 Water-Reducing, High Range and Retarding. ASTM C494, Type G,
except the relative durability factor shall not be less than 90 and the chloride content (as Cl) shall not exceed one percent by weight.
802.01.07 Accelerating . ASTM C494, Type C, except the relative durability factor
shall not be less than 90 and the chloride content (as C1) shall not exceed one percent by weight.
802.01.08 Retarding . ASTM C494, Type B, except the relative durability factor shall
not be less than 90 and the chloride content (as Cl) shall not exceed one percent by weight.
802.01.09 Special Performance. ASTM C494, Type S, except the relative durability
factor shall not be less than 90 and the chloride content (as Cl) shall not exceed one percent by weight. The manufacturer shall provide data to substantiate the specific performance characteristic stated by the manufacturer.
802.02 APPROVAL. Manufacturers are required to submit their individual admixtures
and participate in the National Transportation Product Evaluation Program (NTPEP) for Concrete Admixtures. Current test data mu st be posted in NTPEP DataMine. Select admixtures from the Department’s List of Approved Materials. The Department places admixtures on the list based on evidence of compliance with requirements when determined by tests performed by the Department and review of NTPTP test data. For air-entraining admixtures that are aqueous solutions of Vinsol Resin, manufacturers shall submit a certification in the following form: This is to certify that the product (trade name) as manufactured and 802-1 sold by (company ) is an aqueous solution of Vinsol Resin that has been neutralized with sodium hydroxide. The ratio of sodium hydroxide to Vinsol Resin is one part of sodium hydroxide to (number) parts of Vinsol Resin. The percentage of solids based on the residue dried at 105 °C is (number). No other additive or chemical agent is present in this solution. The Engineer will not require testing of admixtures included on the Department’s List of Approved Materials at the time of their us e unless there is indication in actual field use of harmful effects on the properties of the concrete or when the Engineer considers testing necessary for other reasons. The chemical equivalence ranges stated in ASTM C260 and ASTM C294 will apply. The Department will continue to include an admixture on the list contingent upon satisfactory performance in actual project use, continued product submittal to NTPEP, and an annual certification containing the following information:
1.A statement that the admixture to be furnishe d during the particular calendar year is of the same composition as that previously approved for inclusion on the approved list.
2.A statement that the admixture conforms to the appropriate requirements of ASTM C260 or ASTM C494, as applicable.
3.A statement that the chloride content (as Cl) does not exceed one percent by weight.
4.A statement that notification will be made to the Division of Materials of any changes in composition before furnishing the material to projects. 802-2 SECTION 803 - WATER
803.01 DESCRIPTION. This section describes the requirements for water used in
mixing or curing concrete, emulsified asphalt or other similar materials.
803.02 GENERAL. Use water for mixing or curing concrete, emulsified asphalt, or other
similar materials that is reasonably clean and free from oil, salt, acid, alkali, sugar, vegetable, or other substances injurious to the finished product. The Engineer may test the water at any time for its suitability for a particular use. The Engineer will ordinarily accept water supplied by public distribution systems without testing. The Engineer will require testing of mixing water for use in concrete when not from a public distribution system. Provide water that when tested by KM 64- 226 does not contain impurities in excess of the following limits: Chloride Content (as Cl) 1000 parts per million (ppm)* Sulfate 3000 ppm Alkalies 600 ppm Total Solids 50,000 ppm pH 7 - 9 pH units *Chloride content maximum for prestressed concrete and bridge decks is 500 ppm. 803-1
Source: Kentucky Standard Specifications for Road and Bridge Construction, 2019 Edition. Pages 532–533 of 718.