1042. 1 1042. 2(f)
1042.1DESCRIPTION —This work is construction of a latex modified mortar or concrete wearing surface
on bridge decks , approach slabs or indicated surfaces . The indicated or specified depth of the wearing surface is the minimum.
1042.2MATERIAL —
less than 1 1/4 inches. Use latex modified concrete when the depth is 1 1/4 inches or more. Provide a concrete technician as specified in Section 704.1(d)2. Provide testing facilities and equipment as specified in Section 704.1(d)3. The term “latex,” as used in this Section, refers to latex modified mortar or concrete, unless otherwise specified. Provide latex conforming to the following requirements:
Latex Modified M ortar or Concrete Mix Design Requirements Requirements Mortar Concrete
Cement Content, bags/cu. yd. 8.0 7.0 Latex Emulsion Admixture Modifier, gal/bag of Cement 3.5 3.5 Air Content, % of Plastic Mix (AASHTO T 152) 1 - 7 1 - 7 Water/Cement Ratio, by Weight 0.35 - 0.40 0.30 - 0.40 Slump(1), inches (AASHTO T 119) 4 - 6 3 - 7 Percent Fine Aggregate as Percent of Total Aggregate, by Weight 100 60 ± 5 Cement/Fine Aggregate/Coarse(2) Aggregate Ratio, by Weight 1:3.25 1:2.5:2.0 to 1:2.9:1.6 5-day Compressive Strength (psi) ( PTM Nos. 604 & 611 ) (3) 3,000 3,000 28-day Compressive Strength (psi) ( PTM Nos. 604 & 611) (3) 3,500 3,500
sample on the deck in a suitable container and do not disturb for five minutes. Then, remix the sample and perform the slump test according to AASHTO T 11 9.
produce good workability, but because of gradation changes, the ratios may be adjusted within limits by the Representative.
hours), and air cure as specified in Section 1042.3(d) Table A.
1042. 2(f) 1042. 3(a) Cement Type I, IP, or II, Section 701.1 or other rapid setting cement accepted by the DMM/DME 3 Hour Minimum Compressive Strength 3,000 psi 12 Hour M inimum Compressive Strength 3,000 psi
mix design and ensure tha