Impermeable sprayed concrete

• Main Authors: ZHANG XIAOMING, LUO QING, PENG YANYONG, DIAO LEI, LIU TAO
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2021
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The invention relates to the field of building materials, and particularly discloses impermeable sprayed concrete. The impermeable sprayed concrete is composed of the following components in parts by weight: 400 parts of cement, 869 to 905 parts of medium sand, 740 to 765 parts of fine stone, 60 to 80 parts of admixture, 10 to 20 parts of impermeable fiber, 10 to 15 parts of a setting accelerator, 5.2 to 5.8 parts of a water reducing agent and 190 to 200 parts of water; and the admixture is composed of fly ash, metakaolin and redispersible latex powder in a weight ratio of (3-5):1:1; and the impermeable fiber is composed of basalt fiber, lignocellulose, sepiolite fiber and calcium sulfate whisker in a weight ratio of (3-5):(2-4):(2-4):1. The impermeable sprayed concrete has the advantages of good impermeability and high compressive strength. 本申请涉及建筑材料领域，具体公开了一种抗渗喷射混凝土。一种抗渗喷射混凝土，以重量份数计，包括如下组分：水泥400份、中砂869-905份、细石740-765份、掺合料60-80份、抗渗纤维10-20份、速凝剂10-15份、减水剂5.2-5.8份以及水190-200份；所述掺合料由重量比为3-5:1:1的粉煤灰、偏高岭土及可再分散乳胶粉组成