Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Impermeable concrete duct piece and preparation process thereof
The invention discloses an anti-permeation concrete duct piece which comprises a duct piece main body, and the duct piece main body is formed by pouring nano calcium silicate hydrate modified concrete, the nano calcium silicate hydrate modified concrete is prepared from the following components in parts by mass per cubic meter: 350 to 400 parts of cement, 60 to 70 parts of fly ash, 70 to 80 parts of mineral powder, 700 to 800 parts of sand, 1200 to 1300 parts of stone, 2 to 3 parts of fiber, 6 to 7 parts of water reducing agent, 150 to 180 parts of water and 20 to 25 parts of nano calcium silicate hydrate type early strength agent. According to the anti-permeation concrete duct piece, the nano calcium silicate hydrate modified concrete is adopted for casting molding, so that cement condensation is effectively promoted, and the initial setting time and the final setting time of cement paste are shortened; the drying shrinkage value of the steam-curing-free concrete prepared by adding the nano hydrated calcium silicate type early strength agent is smaller than that of the steam-curing concrete.
本发明公开了一种抗渗透混凝土管片，该抗渗透混凝土管片包括：管片主体，管片主体采用纳米水化硅酸钙改性混凝土浇筑成型，其中，纳米水化硅酸钙改性混凝土按每立方米质量分数计包括如下组分：350‑400份的水泥、60‑70份的粉煤灰、70‑80份的矿粉、700‑800份的砂、1200‑1300份的石、2‑3份的纤维、6‑7份的减水剂、150‑180份的水以及20‑25份的纳米水化硅酸钙型早强剂。本发明的抗渗透混凝土管片通过采用纳米水化硅酸钙改性混凝土进行浇注成型，从而有效促进了水泥的凝结，缩短了水泥浆体的初凝和终凝时间；对于加入纳米水化硅酸钙型早强剂制备的免蒸养混凝土，其干燥收缩值比蒸养混凝土小。
Impermeable concrete duct piece and preparation process thereof
The invention discloses an anti-permeation concrete duct piece which comprises a duct piece main body, and the duct piece main body is formed by pouring nano calcium silicate hydrate modified concrete, the nano calcium silicate hydrate modified concrete is prepared from the following components in parts by mass per cubic meter: 350 to 400 parts of cement, 60 to 70 parts of fly ash, 70 to 80 parts of mineral powder, 700 to 800 parts of sand, 1200 to 1300 parts of stone, 2 to 3 parts of fiber, 6 to 7 parts of water reducing agent, 150 to 180 parts of water and 20 to 25 parts of nano calcium silicate hydrate type early strength agent. According to the anti-permeation concrete duct piece, the nano calcium silicate hydrate modified concrete is adopted for casting molding, so that cement condensation is effectively promoted, and the initial setting time and the final setting time of cement paste are shortened; the drying shrinkage value of the steam-curing-free concrete prepared by adding the nano hydrated calcium silicate type early strength agent is smaller than that of the steam-curing concrete.
本发明公开了一种抗渗透混凝土管片，该抗渗透混凝土管片包括：管片主体，管片主体采用纳米水化硅酸钙改性混凝土浇筑成型，其中，纳米水化硅酸钙改性混凝土按每立方米质量分数计包括如下组分：350‑400份的水泥、60‑70份的粉煤灰、70‑80份的矿粉、700‑800份的砂、1200‑1300份的石、2‑3份的纤维、6‑7份的减水剂、150‑180份的水以及20‑25份的纳米水化硅酸钙型早强剂。本发明的抗渗透混凝土管片通过采用纳米水化硅酸钙改性混凝土进行浇注成型，从而有效促进了水泥的凝结，缩短了水泥浆体的初凝和终凝时间；对于加入纳米水化硅酸钙型早强剂制备的免蒸养混凝土，其干燥收缩值比蒸养混凝土小。
Impermeable concrete duct piece and preparation process thereof
抗渗透混凝土管片及其制备工艺
PENG JIANXIONG (Autor:in) / WANG JINHUI (Autor:in)
28.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E21D
SHAFTS
,
Schächte
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
C04B
Kalk
,
LIME
/
E03F
SEWERS
,
Abwasserkanäle
Impermeable concrete prefabricated part and preparation process thereof
| Europäisches Patentamt | 2023