Petrifying Liquids Are To Be Used To Strengthen Soils
Tunnelling in- the gravel subsoil immediately under Stockholm’s Concert Hall in connection with the subway construction now in progress, with the attendant risk of heavy setting by this stately edifice, has presented Swedish engineers with a problem which is to be solved in a unique fashion. Within 'the next few months, approximately 100 tons of silicate of soda and 200 tons of chloride of lime will, be injected in the soil upon which the building’s foundations rest, forming a relatively hard, jelly-like substance consisting of silicic acid. Subsequently, another liquid, calcium chloride, will be injected, causing the soil to petrify and permitting the constructors to build one of the subway’s walls eight metres right below the Hall foundations.
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https://paperspast.natlib.govt.nz/newspapers/BPB19491031.2.14
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Bay of Plenty Beacon, Volume 14, Issue 57, 31 October 1949, Page 4
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127Petrifying Liquids Are To Be Used To Strengthen Soils Bay of Plenty Beacon, Volume 14, Issue 57, 31 October 1949, Page 4
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