A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Premixed dry powder pouring concrete
The invention relates to the technical field of premixed concrete, in particular to premixed dry powder pouring concrete which comprises the following components in parts by weight: 20-40 parts of drysand, 20-40 parts of broken stone; 10-30 parts of cement; 2-8 parts of mineral powder; 2-8 parts of fly ash; 0.5-1.5 parts of a water reducing agent; and 1-2 parts of an expanding agent. The concreteprepared in the scheme conforms to the GB50010-2010 concrete structure design specification and meets the strength grades of C20, C25 and C30; through adoption of the dry sand and the broken stone with the moisture content smaller than 0.5%, dry sand and broken stone are subjected to winnowing, drying and screening, and are stored through a dry powder mortar tank through dry-process storage, so that the shelf life is not shorter than three months, and the concrete is prepared when used and mixed at any time. During pouring, the small delivery pump is placed at the discharge port of the mortartank and pumped into a mold through a hose, time and labor are saved during pouring, construction efficiency is greatly improved, and labor cost is saved.
本发明涉及预拌混凝土技术领域，具体涉及预拌干粉浇筑混凝土，包括干砂、碎石、水泥、矿粉、粉煤灰、减水剂、膨胀剂，以下组份按重量份数配比计：干砂20‑40份；碎石20‑40份；水泥10‑30份；矿粉2‑8份；粉煤灰2‑8份；减水剂0.5‑1.5份；膨胀剂1‑2份；本方案中制备得到的混凝土符合GB50010‑2010混凝土结构设计规范规定，满足C20、C25、C30强度等级，本方案中采用干砂、含水率小于0.5%的碎石，干砂和碎石经风选烘干并筛分，并利用干粉砂浆罐通过干法储存，保质期不小于三个月，使用时随用随拌制，浇筑时将小型输送泵放置在砂浆罐出料口，通过软管泵送入模，浇筑时省时省力，大大提高了施工效率节省人工成本。
Premixed dry powder pouring concrete
The invention relates to the technical field of premixed concrete, in particular to premixed dry powder pouring concrete which comprises the following components in parts by weight: 20-40 parts of drysand, 20-40 parts of broken stone; 10-30 parts of cement; 2-8 parts of mineral powder; 2-8 parts of fly ash; 0.5-1.5 parts of a water reducing agent; and 1-2 parts of an expanding agent. The concreteprepared in the scheme conforms to the GB50010-2010 concrete structure design specification and meets the strength grades of C20, C25 and C30; through adoption of the dry sand and the broken stone with the moisture content smaller than 0.5%, dry sand and broken stone are subjected to winnowing, drying and screening, and are stored through a dry powder mortar tank through dry-process storage, so that the shelf life is not shorter than three months, and the concrete is prepared when used and mixed at any time. During pouring, the small delivery pump is placed at the discharge port of the mortartank and pumped into a mold through a hose, time and labor are saved during pouring, construction efficiency is greatly improved, and labor cost is saved.
本发明涉及预拌混凝土技术领域，具体涉及预拌干粉浇筑混凝土，包括干砂、碎石、水泥、矿粉、粉煤灰、减水剂、膨胀剂，以下组份按重量份数配比计：干砂20‑40份；碎石20‑40份；水泥10‑30份；矿粉2‑8份；粉煤灰2‑8份；减水剂0.5‑1.5份；膨胀剂1‑2份；本方案中制备得到的混凝土符合GB50010‑2010混凝土结构设计规范规定，满足C20、C25、C30强度等级，本方案中采用干砂、含水率小于0.5%的碎石，干砂和碎石经风选烘干并筛分，并利用干粉砂浆罐通过干法储存，保质期不小于三个月，使用时随用随拌制，浇筑时将小型输送泵放置在砂浆罐出料口，通过软管泵送入模，浇筑时省时省力，大大提高了施工效率节省人工成本。
Premixed dry powder pouring concrete
预拌干粉浇筑混凝土
CUI XIANZHI (author) / QIAO LIANGYOU (author) / FU SHANYONG (author)
2020-12-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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