The dark colour of black cotton soils

Ramachandran, V.; Ahmad, Fakhri; Jain, Lakshya

doi:10.1007/bf03048923

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Gas‐producing agents in the production of lightweight aggregates

1964

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An investigation into the bloating phenomenon in an illitic clay was studied by subjecting the clay to different treatments and employing techniques such as differential thermal analysis, X-ray diffraction, chemical analysis and gas chromatographic analysis. The results indicate that both organic matter and calcium carbonate behave as gas-producing agents. l h e hydroxyl water, entrapped air in thc pores and ferric oxide do not significantly contribute to the bloating.

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