膠凝砂礫石筑壩材料特性研究

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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

自然界中存在著大量的河床沉積砂礫石，通過對其加入膠凝材料（水泥、粉煤灰等）實(shí)施改性而形成筑壩材料——膠凝砂礫石（CSG）材料，這種材料可就地取材，施工時(shí)不存在溫控，有減少成本和減少對環(huán)境污染等優(yōu)點(diǎn)1]，并且在結(jié)構(gòu)上有抗震性好、防滲性能好等優(yōu)勢。（剩余10199字）