Lisebelisoa tsa Foaming tse sebelisoang ka Konkreite

Li-foaming agents ke li-additives tsa lik'hemik'hale tse hlahisang foam ka har'a motsoako oa konkreite e etsang hore ho be le sebopeho sa lisele tsa boima bo bobebe. Konkreite ea foam hangata e sebelisoa lits'ebetsong tsa geotechnical ka lebaka la letsoalo la eona le tlase le khanyetso e ntle ea ho kuta, ho fokotsa kotsi ea tšenyo ea mobu le lisebelisoa tse ling tse tlase [2].

Mofuta oa moemeli oa foaming ke oa bohlokoa kaha o khetholla litšoaneleho tsa sehlahisoa se foamed joalo ka botsitso, ho monya metsi le ho hanyetsa serame. Ho na le lisebelisoa tse 'maloa tsa ho foaming, ho kenyeletsoa le mefuta e mengata ea maiketsetso a otlolohileng (SS) le lihlahisoa tse thehiloeng ho protheine. Ho khothaletsoa hore moemeli ofe kapa ofe ea khethiloeng oa ho foqola makipa a hlahlojoe ka laboratoring ka lisebelisoa tsa lehae ho netefatsa ho lumellana ho lebelletsoeng.

Kabo ea boholo ba pore le porosity ea foam le tsona li bohlokoa ka konkreite ea foam. The pore sizes are influenced by the foaming agent and aggregates. A broader distribution of smaller pores enhances the strength and reduces drying shrinkage. The pore size is determined by the foaming agent, so the use of a more aggressive foaming agent increases the pore size and improves the strength.

Using different types of aggregates is also important in foam concrete. The aggregate type influences the overall pore size and the strength of the material. Gencel et al. showed that RCA increased the pore size and reduced the compressive strength of foamed concrete. Pasupathy et al. found that RCA reduces the strength of foamed concrete, probably because the aggregate particles are less strong than sand.

Adding silica fume to the foam concrete increases the dry density and compressive strength, hammoho le conductivity ea mocheso. Holim'a moo, ho tlalehoa hore granulated blast furnace slag e thusa ho fokotsa mocheso oa hydration le nts'etsopele ea mocheso ka konkreite ea foam..