▎ 摘　　要

NOVELTY - A cement concrete composition comprises 20-40 wt.% at least one cement chosen from slag cement and Portland cement having a fineness of 6000-8500 cm2/g, 20-55 wt.% particle size adjusted silica sand, 5-20 wt.% alumina cement having a fineness of 6000-8500 cm2/g, 5-25 wt.% at least one fast curing agent chosen from calcium sulfo-aluminate, gypsum, calcium oxide, calcium sulfate and calcium aluminate hydrate, 2-10 wt.% filler, 5-15 wt.% polymer performance improver containing styrene and butadiene in a weight ratio of 2-3:1, 0.5-5 wt.% reinforcing agent containing silica fume and nanocarbon material in a weight ratio of 2:1, 0.5-3 wt.% anionic or non-anionic dispersant, 3-7 wt.% latent heat material mixed with stearic acid and strontium hydroxide hydrate in a weight ratio of 1:1-3, and 0.5-5 wt.% reinforcing material. USE - Cement concrete composition used in mortar composition for paving road (all claimed). Uses include bur are not limited to bridge surface, deck, underwater bridge in seawater, submerged building and underwater building. ADVANTAGE - The composition has improved curing rate, shortens curing period, controls heat of initial hydration, reduces occurrence of microcracks, and improves durability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: mortar composition, which comprises 20-25 pts. wt. water, 26-28 pts. wt. latex, 260-270 pts. wt. fine aggregate, and 215-220 pts. wt. coarse aggregate, based on 100 pts. wt. cement concrete composition; and road paving method.