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Composite additive for marine silt stratum grouting slurry and application of composite admixture
The invention discloses a composite additive for marine silt stratum grouting slurry and application of the composite additive. The composite additive comprises, by mass, 11.6 to 12.3 parts of trimethyl ammonium chloride, 0.8 to 1.0 part of sodium phosphite, 66.5 to 67.9 parts of polyoxyethylene ether, 2.7 to 3.0 parts of hydroxypropyl methyl cellulose, 1.4 to 1.6 parts of ammonium persulfate, 6.6 to 7.3 parts of polyacrylamide, 2.7 to 3.0 parts of sodium potassium tartrate tetrahydrate, 3.2 to 3.5 parts of calcium formate and 2.3 to 2.6 parts of sodium dodecyl benzene sulfonate. The composite additive is used for marine silt stratum grouting slurry, and the marine silt stratum grouting slurry comprises the following components in percentage by mass: 62.7%-63.5% of cement, 0.1%-0.3% of the composite additive and 36.4%-37.0% of water. By adding a certain amount of the compound additive, the flowability and pumping period of the slurry are improved, and meanwhile, the corrosion resistance and strength characteristic of the stone body are improved. And the water cement ratio is reduced, and meanwhile the bearing capacity of the soft foundation is improved.
本发明公开了一种海积淤泥地层注浆浆液用复合外加剂及其应用，所述海积淤泥地层注浆浆液用复合外加剂，按质量百分比计，其组成如下：三甲基氯化铵11.6～12.3份、亚磷酸钠0.8～1.0份、聚氧乙烯基醚66.5～67.9份、羟丙甲基纤维素2.7～3.0份、过硫酸铵1.4～1.6份、聚丙烯酰胺6.6～7.3份、酒石酸钾钠2.7～3.0份、甲酸钙3.2～3.5份、十二烷基苯磺酸钠2.3～2.6份。将所述复合外加剂用于海积淤泥地层注浆浆液，所述海积淤泥地层注浆浆液，按质量百分比计，其组成如下：水泥62.7％～63.5％：复合型外加剂0.1％～0.3％：水36.4～37.0％。添加一定含量的复合型外加剂不仅提高了浆液流动性和可泵期，同时提高了结石体的耐腐蚀性和强度特性。在降低水灰比的同时提高了软基承载能力。
Composite additive for marine silt stratum grouting slurry and application of composite admixture
The invention discloses a composite additive for marine silt stratum grouting slurry and application of the composite additive. The composite additive comprises, by mass, 11.6 to 12.3 parts of trimethyl ammonium chloride, 0.8 to 1.0 part of sodium phosphite, 66.5 to 67.9 parts of polyoxyethylene ether, 2.7 to 3.0 parts of hydroxypropyl methyl cellulose, 1.4 to 1.6 parts of ammonium persulfate, 6.6 to 7.3 parts of polyacrylamide, 2.7 to 3.0 parts of sodium potassium tartrate tetrahydrate, 3.2 to 3.5 parts of calcium formate and 2.3 to 2.6 parts of sodium dodecyl benzene sulfonate. The composite additive is used for marine silt stratum grouting slurry, and the marine silt stratum grouting slurry comprises the following components in percentage by mass: 62.7%-63.5% of cement, 0.1%-0.3% of the composite additive and 36.4%-37.0% of water. By adding a certain amount of the compound additive, the flowability and pumping period of the slurry are improved, and meanwhile, the corrosion resistance and strength characteristic of the stone body are improved. And the water cement ratio is reduced, and meanwhile the bearing capacity of the soft foundation is improved.
本发明公开了一种海积淤泥地层注浆浆液用复合外加剂及其应用，所述海积淤泥地层注浆浆液用复合外加剂，按质量百分比计，其组成如下：三甲基氯化铵11.6～12.3份、亚磷酸钠0.8～1.0份、聚氧乙烯基醚66.5～67.9份、羟丙甲基纤维素2.7～3.0份、过硫酸铵1.4～1.6份、聚丙烯酰胺6.6～7.3份、酒石酸钾钠2.7～3.0份、甲酸钙3.2～3.5份、十二烷基苯磺酸钠2.3～2.6份。将所述复合外加剂用于海积淤泥地层注浆浆液，所述海积淤泥地层注浆浆液，按质量百分比计，其组成如下：水泥62.7％～63.5％：复合型外加剂0.1％～0.3％：水36.4～37.0％。添加一定含量的复合型外加剂不仅提高了浆液流动性和可泵期，同时提高了结石体的耐腐蚀性和强度特性。在降低水灰比的同时提高了软基承载能力。
Composite additive for marine silt stratum grouting slurry and application of composite admixture
一种海积淤泥地层注浆浆液用复合外加剂及其应用
XIA KAIFENG (author) / XIONG HONGWU (author) / CHEN GUOHUA (author) / LONG WEN (author) / CHENG SHIBING (author) / LIN LIUHAN (author) / ZHAO DETIAN (author) / ZHOU KUN (author) / LIAO WEILU (author) / FENG HUAN (author)
2021-09-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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