Kwanan Wata:19,Jun,2023

三.Lamarin da ba na coagulation ba

Al'amari: Bayan ƙara mai rage ruwa, simintin bai daɗe da ƙarfi ba, ko da yini da dare, ko saman yana fitar da slurry kuma ya zama launin rawaya.

Binciken dalilai:

(1) Yawan adadin wakili mai rage ruwa;

(2)Yawan amfani da masu hana ruwa gudu.

Sharuɗɗan sasantawa:

(1) Ba za a wuce sau 2-3 da aka ba da shawarar ba, kodayake ƙarfin ya ragu kaɗan, raguwar ƙarfin kwanakin 28 ya ragu, kuma raguwar ƙarfin dogon lokaci ya fi ƙasa;

(2) Bayan saiti na ƙarshe, da kyau ƙara yawan zafin jiki na warkewa da ƙarfafa shayarwa da warkarwa;

(3) Cire bangaren da aka kafa a sake zubawa.

四.Low tsanani sabon abu

Al'amari: Ƙarfin ya yi ƙasa da sakamakon gwajin shekaru ɗaya, ko da yake simintin ya saita, ƙarfin yana da ƙasa sosai.

Binciken dalilai:

(1) Ƙarfafawar haɓakar iska ta hanyar rage yawan ruwa yana haifar da yawan abin da ke cikin iska a cikin kankare;

(2) Rashin isasshen rawar jiki bayan haɗuwa tare da iska mai hana ruwa mai rage ruwa;

(3) Rashin rage ruwa ko haɓaka rabon siminti maimakon;

(4) Ƙara yawan adadin triethanol da aka ƙara.

Sharuɗɗan sasantawa:

(1) Karɓar wasu matakan ƙarfafawa ko sake zubowa;

(2) Ƙarfafa post zuba vibration;

(3) Ɗauki matakan magance dalilan da aka ambata.

五.Rashin raguwa cikin sauri

Phenomenon: Kankare da sauri rasa da workability, kuma tare da kowane 2-3 minti na tsawo bayan da aka sallama daga tanki, da slump ya ragu da 1-50 mm, kuma akwai wani gagarumin nutsewa sabon abu.Babban slump kankare ya fi dacewa da wannan sabon abu.

Binciken dalilai:

(1) Abubuwan rage ruwa suna da rashin daidaituwa ga simintin da aka yi amfani da su;

(2) Kumfa da aka shigar a cikin simintin yana ci gaba da ambaliya, yana haifar da ƙazantar ruwa, musamman lokacin amfani da iska mai hana ruwa rage ruwa;

(3) Maɗaukakin zafi mai haɗawa ko zafin muhalli;

(4) Rukunin siminti yana da girma sosai.

Sharuɗɗan sasantawa:

(1) Nemo dalilin kuma a dauki matakan magance shi;

(2) Yin amfani da hanyar hadawa bayan, ana ƙara mai rage ruwa bayan mintuna 1-3 bayan an haɗa simintin ko ma kafin a zuba, sannan a sake haɗawa;

(3) A kiyaye kar a kara ruwa.

六.Haɗin gwiwa

Bayan an zuba, za a sami gajeru, madaidaiciya, fadi, da faɗuwa a cikin simintin kafin da bayan saitin farko.

Binciken dalilai:

Bayan ƙara yawan wakilai na rage ruwa, simintin ya fi danko, ba ya zubar da jini kuma ba shi da sauƙi don daidaitawa gaba ɗaya, sau da yawa yana bayyana a sama da sandunan ƙarfe;

Sharuɗɗan sasantawa:

Aiwatar da matsa lamba zuwa tsagewar kafin da bayan saitin farko na simintin har sai sun ɓace.