胶凝砂砾石筑坝材料特性研究

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WANG Ran ，GONG Aimin ，SHAO Shanqing（College of Water Conservancy，Yunnan Agricultural University，Kunming 65O2O1，China）

Abstract：CementitioussandandgravelisanewtypeofdmcementingmateralbetwnconcreteandrockfllIthasheadvantagesof savingresourcs，reducingcosandprotectingenviroment.Thetudyoftecharacterisicsofcementiossandandgravelatealsis thekeytothedesignofdamstructure.Atpresentthereisalackofcomprehensiveunderstandingoftecharacteriticsofceetitious sandandgravelmaterials.Inodertomakethecementitioussandandgravelmaterialbeterapliedtopracticalenginering，through literaturereview，tispapersummarizesthemechanicalpropertiesofcementitoussandandgavelmateralsandthedurabilityofterials underfreeze-thawenvironmentaresummarized，andthecharacteristicsofcementioussandandgravelmaterialsarecomprehensively analyzedbytheinfluenceofvariousparameterssuchasrubberdosage，unitwaterconsumption，water-glueratio，sandrate，age，etc.， so as to provideatheoreticalbasis forfurther researchandapplication of cementioussandand gravel damming materials.

Keywords：cemented sand gravel；material science；mechanical properties；durability

0引言

自然界中存在着大量的河床沉积砂砾石，通过对其加入胶凝材料（水泥、粉煤灰等）实施改性而形成筑坝材料——胶凝砂砾石（CSG）材料，这种材料可就地取材，施工时不存在温控，有减少成本和减少对环境污染等优点1]，并且在结构上有抗震性好、防渗性能好等优势。（剩余10199字）