| abstract |
(57) [Summary] PROBLEM TO BE SOLVED: To be used by being interposed between an existing hardened body (particularly a pavement of a road with a large traffic volume) and a permeable concrete to be newly cast thereon. Thus, a joint paste or mortar that rapidly develops a certain or more adhesive strength is provided. SOLUTION: The paste or mortar for jointing permeable concrete contains 100 parts by weight of hydraulic material, 0 to 300 parts by weight of fine aggregate, 0.1 to 2.0 parts by weight of water reducing agent, and 15 to 30 parts by weight of water. Hydraulic material is 20-60% by weight of clinker mainly composed of calcium sulfoaluminate, 20-70% by weight of Portland cement clinker, 0.5-30% by weight of anhydrous gypsum, 0.1-3.0% by weight of alkali metal carbonate, organic It is a quick-setting cement composed of 0.05 to 4.0% by weight of an acid and having a molar ratio of SO 3 / Al 2 O 3 of 1.0 to 1.4. |