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 SECTION 804 FINE AGGREGATES
804.01 GENERAL. Fine aggregates include, but at the discretion of the Engineer are not
limited to, natural sand, crushed sand, conglom erate sand, mortar sand, mineral filler, and lightweight aggregates where permitted. The Department’s List of Approved Materials includes the Aggregate Source List and the list of Class A and Class B Polish-Resista nt Aggregate Sources, the Concrete Aggregate Restriction List and the Lightweight Aggregate Source List.
804.01.01 Natural Sand. Provide fine granular material resulting from the natural
disintegration of rock.
804.01.02 Crushed Sand. Provide fine granular material resulting from crushing of
stone or gravel.
804.01.03 Conglomerate Sand. Provide natural materials primarily processed to the
desired sizes, without crushing. Conglomerate sand may include some material which has been produced by crushing larger pieces of the parent material.
804.01.04 Mortar Sand. Provide natural, crushed, or conglomerate sand suitable for
use in cement mortar.
804.01.05 Mineral Filler. Provide limestone dust, cement, fly ash, or other inert
mineral matter.
804.01.06 Slag. Provide blast furnace slag sand where permitted. The Department will
allow steel slag sand only in asphalt surface applications.
804.02 APPROVAL. Provide fine aggregates from sources included on the Aggregate
Source List meeting the description and requirements specified in this section. The Department will consider a source for inclusion on the Aggregate Source List when the aggregate producer complies with KM 64-608 and provides the following:
1.A Quality Control Plan.
2.A satisfactory laboratory facility with all necessary testing equipment.
3.A Qualified Aggregate Technician to perform the required testing. When a supplier wishes to supply sand only for asphalt mixtures, Items 1, 2 and 3 above will be waived. The Department may add the source to the Aggregate Source List and restrict its use to asphalt mixtures. Obtain the Department’s approval before furnishing aggregate from sources not on the Aggregate Source List. The Department will sample the aggregate during stockpiling and test according to the Department’s Manual of Field Testing and Sampling Practices. The Department will reject aggregate when excessive variation of gradation or physical properties cause unworkable mixtures, mixtur e control problems, or non-conformance to the finished product or mixture requirements. The Department will reject contaminated aggregate when the Engineer deems it could be detrimental to the finished product.
804.03 CONCRETE. Provide natural, crushed, or conglomerate sand. The Engineer
may allow other sands. Use natural or conglomerate sands as fine aggregates in concrete intended as a wearing surface for traffic. 804-1
Source: Kentucky Standard Specifications for Road and Bridge Construction, 2019 Edition. Pages 534–534 of 718.