This　paper　presents　an　integrated　investigation　of　elastic　modulus　of　corroded　cement　paste　by　experiments　and　homogenization　calculation.　First　of　all,　cured　cement　paste　samples　were　immersed　in　brine　solution　with　specific　chemical　compositions　for　60　d.　Then　the　elastic　moduli　of　the　samples　were　measured　by　the　nanoindentation　test.　The　test　results　demonstrated　that　the　elastic　moduli　of　the　nanoindentation　points　decreased,　compared　with　the　original　cement　paste.　In　addition,　X-ray　Diffraction　(XRD)　and　Scanning　Electron　Microscope-Energy　Dispersive　Spectroscope　(SEM-EDS)　were　combined　to　analyze　the　compositions　of　the　corroded　cement　paste　quantitatively.　As　a　result,　volume　fractions　of　nine　compositions　of　the　corroded　cement　paste　in　each　nanoindentation　point　were　calculated.　Afterward,　an　advanced　homogenization　method　combining　Mod-Tanaka　(MT)　method　with　self　consistent　(SC)　method　was　proposed　to　calculate　the　elastic　moduli　of　the　nanoindentation　points.　The　calculation　results　had　good　agreement　with　the　experimental　results　due　to　small　relative　difference　and　standard　deviation.　The　back-scattered　electron　(BSE)　image　was　used　to　analyze　the　elastic　moduli　distribution　of　the　nanoindentation　points　as　well.　The　result　indicated　that　the　elastic　moduli　of　the　nanoindentation　points　were　related　to　the　elastic　moduli　of　their　main　compositions.　(C)　2017　Elsevier　Ltd.　All　rights　reserved.