The　traditional　disposal　methods　of　paper/wood　industry　raise　serious　environmental　concerns,　thus,　requires　innovative　and　productive　ideas　to　manage　such　waste.　This　article　deals　with　the　appraisal　and　modification　of　lignosulphonate,　a　waste　by-product　of　paper/wood　industry,　as　a　soil　stabilizer　to　mitigate　the　disastrous　environmental　vulnerabilities　of　expansive　soil　related　to　the　wetting-drying　cycles.　In　this　context,　a　novel　approach　of　integrating　lignosulphonate　with　hydrated　lime　was　proposed,　based　on　the　short　comings　of　lignosulphonate　as　a　lone　soil　stabilizer.　Periodic　variations　of　wetting-drying　cycles　were　assessed　on　various　engineering　properties　of　untreated　and　treated　expansive　soils　with　the　optimum　percentage　of　lignosulphonate,　hydrated　lime,　and　proposed　binary　admixture.　Micro-fabric　changes　were　also　analyzed　to　evaluate　the　stabilization　mechanism　in　mitigating　the　disastrous　environmental　aspects　of　expansive　soil.　The　results　showed　that　both　untreated　and　lignosulphonate　treated　samples　underwent　suppression　in　swelling　behavior　and　gain　equilibrium　at　the　third　wetting-drying　cycle.　Whereas,　the　proposed　binary　admixture　exhibited　complete　mitigation　of　the　swelling　behavior　and　showed　significant　hindrance　against　the　wetting-drying　cycles　in　terms　of　compressibility,　hydraulic　conductivity,　and　shear　strength　of　soil.　In　comparison,　lignosulphonate　alone　showed　inferior　and　hydrated　lime　showed　almost　similar　amelioration　of　most　of　the　engineering　properties　accounting　the　environmental　vulnerabilities　of　expansive　soils.　The　scanning-electron　micro-graphs　of　all　the　soil　samples　showed　destructed　clay　structures　with　more　inter　assemblage　pore　spaces　upon　wetting-drying　cycles.　Moreover,　the　proposed　binary　admixture　exhibited　better　stabilization　mechanism　than　lignosulphonate　alone　considering　the　wetting-drying　cycles.　Evidently,　the　proposed　binary　admixture　curtails　the　environmental　vulnerabilities　of　expansive　soil,　significantly　reduces　the　lime　consumption　for　expansive　soil　stabilization,　and　proposes　a　sustainable　and　environment　friendly　waste　management　for　the　paper/wood　industry.