Preparation method of high-strength UHPC hollow thin-wall structure road edge stone

• Main Authors: WANG JINGYANG, WAN DANDAN, LIANG JIANBO, JING DAIYAN, LIU RONGJIN, MING YANG, LI JINGHONG
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2023
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, ORTHE LIKE; FIXED CONSTRUCTIONS; LIME, MAGNESIA; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR; METALLURGY; PERFORMING OPERATIONS; PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL,e.g. PLASTER; REFRACTORIES; SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURESCONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER; SLAG; TRANSPORTING; TREATMENT OF NATURAL STONE; WORKING CEMENT, CLAY, OR STONE

The invention discloses a preparation method of a high-strength UHPC (Ultra High Performance Concrete) road edge stone with a hollow thin-wall structure. The concrete road traffic stone formula is prepared from the following raw materials in parts by weight: 800 to 1000 parts of P.O42.5 cement, 120 to 190 parts of silica fume, 60 to 80 parts of fly ash, 1000 to 1100 parts of quartz sand, 25 to 30 parts of a water reducing agent, 180 to 240 parts of water, 10 to 20 parts of a release agent, 0.5 to 1 part of a polyether defoaming agent, 0.5 to 1 part of an organic silicon defoaming agent, 1 part of a tartaric acid retarder and 150 to 160 parts of steel fiber. The hollow-structure road edge stone with the compressive strength of 114.4-128.8 MPa is prepared according to the raw material formula, and the hollow-structure road edge stone not only has good bearing capacity and durability, but also is low in material consumption, the weight is reduced by 50% or above, and the hollow-structure road edge stone has good