Lightweight Concrete Additives | High-Performance Foaming Agents for Cellular Concrete
Foam kongiri ine akawanda serval mabhenefiti pamusoro peyakajairwa kongiri senge kuderedzwa kwechimiro chakafa mutoro, vashoma vashandi, kuderera kwekutakura uye mutengo wekushanda uye kuwedzera moto kuramba, thermal insulation uye kunwa kwenzwi [1]. Zvisinei, chimwe chezvipingamupinyi zvechinhu ichi ndechekuoma kwayo kwepamusoro shrinkage. Naizvozvo, Chinangwa chetsvagurudzo iyi chaive chekuenzanisa mhedzisiro yemhando mbiri dzakasiyana dzeanopupa furo (protein uye synthetic) pakugadzikana kwefuro, microstructure uye kusimba kwesimba refoam kongiri pane akasiyana densities.
Mhedzisiro yechidzidzo chazvino yakaratidza kuti protein-based foaming agent inoratidza kuita kwepamusoro pane synthetic-based foaming agent maererano nekugadzikana kwefuro uye microstructure.. Izvo zvakaonekwa zvakare kuti kugona kupupa kweprotein-based foaming agent kunoenderana nekukosha kwayo pH. Zvinokurudzirwa kushandiswa kweprotein-based foaming agent ine pH kukosha pamusoro 10 inopa mhedzisiro yakanaka.
Pamusoro pe, zvakaonekwa kuti iyo inoputika inobatwa nehuwandu hwemvura inoshandiswa mumusanganiswa. Kushandisa mvura yakawanda kupfuura inodiwa kunoparadza mabhuru ari mumusanganiswa. The optimum reshiyo yefoaming agent kune simende ndeye 0.6 %.
Panguva yekurapa, zvakaonekwa kuti kongiri ine furo inoratidza kuderera kukuru mukuomesa shrinkage nenguva. Izvi zvinokonzerwa nekuti kuvapo kwe hydration zvigadzirwa mu foam kongiri kunokurudzira kuomesa shrinkage. Uyezve, chimiro chepore cheprotein-based foamed concrete chakanyanya kufanana pane chekugadzira-based one.