Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Special admixture for silt-based underwater foundation protective material and preparation method of special admixture
The invention relates to a special admixture for a silt-based underwater foundation protection material and a preparation method thereof, the special admixture is composed of an activator, an anti-dispersing agent, an anti-abrasion agent, a defoaming agent, a coagulation accelerator and a plasticizer, 5-10% of the material is mixed with 80-90% of dredged silt (the water content is 80-120%) and 0-10% of cement, and the obtained muddy slurry can be under the underwater pressure lt; the pressure is 400 kPa, and the water flow velocity is lt; self-flowing without dispersion in an environment of 1.0 m/s is realized, and the underwater pouring loss rate is 1t; 10%; the plastic slurry can resist scouring of water flow within 3.0 m/s after being poured for 30 min, a solidified body after being hardened is compact, smooth, elastic and good in ion erosion resistance, and is tightly attached to a foundation bed into a whole, so that scouring and emptying of a concrete structure foundation and erosion of microorganisms, sulfate and the like are effectively prevented; the problems of high fluid material construction loss, high water body pollution, low protection material quality and the like in special operation environments with factors such as underwater tide level and flow field changes are solved.
本发明涉及一种淤泥基水下基础防护料专用外加剂及其制备方法，由激发剂、抗分散剂、抗磨蚀剂、消泡剂、促凝剂和塑化剂组成，5％～10％该材料与80％～90％疏浚淤泥(含水率80％～120％)及0％～10％水泥拌合，获得的泥质浆体可在水下压力<400kPa、水流速度<1.0m/s的环境中自流而不离散，水下浇注损耗率<10％；浇注30min后的塑性浆体即可抵抗3.0m/s以内水流冲刷，硬化后固结体致密、平滑、有弹性、抗离子侵蚀性好，与基床紧密贴合为一体，有效防护混凝土结构基础冲刷掏空和微生物、硫酸盐等侵蚀；解决了水下潮位、流场等因素变化的特殊作业环境流体材料施工损耗多、水体污染大和防护材料品质低等难题。
Special admixture for silt-based underwater foundation protective material and preparation method of special admixture
The invention relates to a special admixture for a silt-based underwater foundation protection material and a preparation method thereof, the special admixture is composed of an activator, an anti-dispersing agent, an anti-abrasion agent, a defoaming agent, a coagulation accelerator and a plasticizer, 5-10% of the material is mixed with 80-90% of dredged silt (the water content is 80-120%) and 0-10% of cement, and the obtained muddy slurry can be under the underwater pressure lt; the pressure is 400 kPa, and the water flow velocity is lt; self-flowing without dispersion in an environment of 1.0 m/s is realized, and the underwater pouring loss rate is 1t; 10%; the plastic slurry can resist scouring of water flow within 3.0 m/s after being poured for 30 min, a solidified body after being hardened is compact, smooth, elastic and good in ion erosion resistance, and is tightly attached to a foundation bed into a whole, so that scouring and emptying of a concrete structure foundation and erosion of microorganisms, sulfate and the like are effectively prevented; the problems of high fluid material construction loss, high water body pollution, low protection material quality and the like in special operation environments with factors such as underwater tide level and flow field changes are solved.
本发明涉及一种淤泥基水下基础防护料专用外加剂及其制备方法，由激发剂、抗分散剂、抗磨蚀剂、消泡剂、促凝剂和塑化剂组成，5％～10％该材料与80％～90％疏浚淤泥(含水率80％～120％)及0％～10％水泥拌合，获得的泥质浆体可在水下压力<400kPa、水流速度<1.0m/s的环境中自流而不离散，水下浇注损耗率<10％；浇注30min后的塑性浆体即可抵抗3.0m/s以内水流冲刷，硬化后固结体致密、平滑、有弹性、抗离子侵蚀性好，与基床紧密贴合为一体，有效防护混凝土结构基础冲刷掏空和微生物、硫酸盐等侵蚀；解决了水下潮位、流场等因素变化的特殊作业环境流体材料施工损耗多、水体污染大和防护材料品质低等难题。
Special admixture for silt-based underwater foundation protective material and preparation method of special admixture
一种淤泥基水下基础防护料专用外加剂及其制备方法
WANG DONG (Autor:in) / FENG JIARUI (Autor:in) / ZHANG HU (Autor:in) / SHI MINGJIAN (Autor:in) / LIU XINGRONG (Autor:in) / DU ZHIQIN (Autor:in)
01.11.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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