A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SHOTCRETE COMPOSITION
A shotcrete composition comprising a) a cementitious binder; b) an ettringite formation controller comprising (i) a glyoxylic acid condensate and/or a glyoxylic acid adduct; and c) an alkali-free, aluminum-based shotcrete accelerator. The invention further relates to a process comprising providing a cementitious composition comprising a) a cementitious binder, and b) an ettringite formation controller comprising (i) a glyoxylic acid condensate and/or a glyoxylic acid adduct; admixing an alkali-free, aluminum- based shotcrete accelerator to the cementitious composition to obtain a shotcrete composition; and applying the shotcrete composition onto a surface to obtain a shotcrete structure and allowing the shotcrete structure to harden. The invention also relates to a hardened shotcrete structure obtained by this process.
喷射混凝土组合物，包含a)水泥粘合剂；b)包含(i)乙醛酸缩合物和/或乙醛酸加合物的钙矾石形成控制剂；c)无碱铝基喷射混凝土加速剂。本发明还涉及一种方法，包含：提供包含a)水泥粘合剂和b)包含(i)乙醛酸缩合物和/或乙醛酸加合物的钙矾石形成控制剂的水泥组合物；将无碱铝基喷射混凝土加速剂混合到水泥组合物中以获得喷射混凝土组合物；将喷射混凝土组合物施加到表面上以获得喷射混凝土结构体并使喷射混凝土结构体硬化。本发明还涉及通过上述方法获得的硬化的喷射混凝土结构体。
SHOTCRETE COMPOSITION
A shotcrete composition comprising a) a cementitious binder; b) an ettringite formation controller comprising (i) a glyoxylic acid condensate and/or a glyoxylic acid adduct; and c) an alkali-free, aluminum-based shotcrete accelerator. The invention further relates to a process comprising providing a cementitious composition comprising a) a cementitious binder, and b) an ettringite formation controller comprising (i) a glyoxylic acid condensate and/or a glyoxylic acid adduct; admixing an alkali-free, aluminum- based shotcrete accelerator to the cementitious composition to obtain a shotcrete composition; and applying the shotcrete composition onto a surface to obtain a shotcrete structure and allowing the shotcrete structure to harden. The invention also relates to a hardened shotcrete structure obtained by this process.
喷射混凝土组合物，包含a)水泥粘合剂；b)包含(i)乙醛酸缩合物和/或乙醛酸加合物的钙矾石形成控制剂；c)无碱铝基喷射混凝土加速剂。本发明还涉及一种方法，包含：提供包含a)水泥粘合剂和b)包含(i)乙醛酸缩合物和/或乙醛酸加合物的钙矾石形成控制剂的水泥组合物；将无碱铝基喷射混凝土加速剂混合到水泥组合物中以获得喷射混凝土组合物；将喷射混凝土组合物施加到表面上以获得喷射混凝土结构体并使喷射混凝土结构体硬化。本发明还涉及通过上述方法获得的硬化的喷射混凝土结构体。
SHOTCRETE COMPOSITION
喷射混凝土组合物
MITKINA TATIANA (author) / DENGLER JOACHIM (author)
2022-01-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME