Ruwan Fasaha
Ruwan fasaha shi ne albarkacin ƙarfi amma mara daɗin albarkacin ƙarfi a cikin ayyukan gini na ƙarfe mai ƙarfi da geotechnical na zamani. Difanansa da ruwan sha, ruwan fasaha an tsara shi musamman don cika ka'idojin ƙarfi waɗanda ake buƙata don ayyukan gini na ƙasa mara daɗi. Ruwan haka shi ne jinin rayuwa ga irin waɗannan hanyoyin gini na musamman, daga rotary drilling zuwa hanyoyin grouting na zamani.