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2. ASTM D. 559-03. Standard Test Methods for Wetting and Drying Compacted Soil–Cement Mixtures. American Society for Testing and Materials, West Conshohocken, Pennsylvania, USA.
3. ASTM D. 560-03. Standard Test Methods for Freezing and Thawing Compacted Soil-Cement Mixtures.American Society for Testing and Materials, West Conshohocken, Pennsylvania, USA.
4. ASTM D. 1632-96. Standard Practice for Making and Curing Soil–Cement Compression and Flexure Test Specimens in the Laboratory.American Society for Testing and Materials, West Conshohocken, Pennsylvania, USA.