Kwanan Wata: 19, Satumba, 2022
Retarder wani abu ne wanda zai iya hana hydration na siminti kuma ya tsawaita lokacin canji na cakuda daga filastik zuwa yanayi mai wuya. Sabili da haka, ana iya amfani dashi a cikin simintin kasuwanci don inganta slump riƙe da kankare. Yana da makawa don kankare kasuwanci. da admixture sinadaran.
A haƙiƙa, rawar da masu koma baya ke takawa ya fi haɓaka ɗimbin robobin siminti na kasuwanci.
(1)Mafi yawan masu retarders suna da wani aiki na yin robobi, kuma wasu masu retarders suna da tasirin rage ruwa fiye da na superplasticizers da aka saba amfani da su. Gwaje-gwaje sun nuna cewa tasirin rage ruwa na sodium gluconate da aka saba amfani da shi shine sau da yawa fiye da na naphthalene na tushen superplasticizers. gane. A lokacin babban zafin jiki na gina jiki, ƙara yawan adadin sodium gluconate, farashin ginin ba zai karu ba, saboda za'a iya rage yawan adadin ma'aunin rage ruwa mai dacewa.
A haƙiƙa, rawar da masu koma baya ke takawa ya fi haɓaka ɗimbin robobin siminti na kasuwanci.
(1)Mafi yawan masu retarders suna da wani aiki na yin robobi, kuma wasu masu retarders suna da tasirin rage ruwa fiye da na superplasticizers da aka saba amfani da su. Gwaje-gwaje sun nuna cewa tasirin rage ruwa na sodium gluconate da aka saba amfani da shi shine sau da yawa fiye da na naphthalene na tushen superplasticizers. gane. A lokacin babban zafin jiki na gina jiki, ƙara yawan adadin sodium gluconate, farashin ginin ba zai karu ba, saboda za'a iya rage yawan adadin ma'aunin rage ruwa mai dacewa.
Yin amfani da retarder mai yawa a cikin ginin simintin kasuwanci bai dace ba. Yin amfani da retarder mai yawa a cikin kankare ba kawai zai shafi haɓaka ƙarfin farko na siminti ba, har ma yana shafar ci gaban ginin. Saboda yanayin robobi na dogon lokaci na siminti, za a fallasa shi ga iska da rana a cikin yanayi, kuma ruwan da ke kan simintin zai yi tasiri. Babban adadin ƙashin ƙura yana ƙara yawan asarar ruwa a saman simintin, yana haifar da ƙarin ƙananan ƙwayoyin cuta. Yayin da asarar ruwa ya karu, raguwa yana tasowa zuwa zurfin, matakin ruwa na ruwa a cikin ramukan simintin ya ragu, mummunan matsa lamba da aka haifar da hankali yana ƙaruwa, kuma sakamakon raguwa Ƙarfin yana sa simintin ya ragu saboda asarar ruwa.
Kankarewar da ke cikin yanayin filastik na dogon lokaci zai haifar da daidaitawar zubar jini da nakasar da ba ta dace ba tsakanin tari da kayan siminti. Dangane da gwaje-gwajen, raguwar filastik na siminti a cikin yanayin filastik na dogon lokaci zai iya kaiwa 1%, wanda ke da tasiri sosai akan ingancin siminti.
Lokacin aikawa: Satumba-19-2022
