Accelerating admixtures for kankare su ne sinadaran Additives da ake amfani da su hanzarta saitin da hardening tsari na kankare.Waɗannan haɗe-haɗe suna da amfani musamman a yanayin sanyi mai sanyi ko kuma a yanayin da ake buƙatar saita siminti da sauri, kamar a cikin yanayin gyare-gyaren gaggawa ko ayyukan gine-gine masu ɗaukar lokaci.

Akwai manyan nau'ikan abubuwan haɓakawa guda biyu don kankare: tushen chloride da wanda ba tushen chloride ba.Admixtures na tushen Chloride, waɗanda galibi suna ɗauke da alli chloride ko sodium chloride, sune abubuwan haɓakawa na gama gari da inganci.Duk da haka, saboda yuwuwar su na haifar da lalata ƙarfin ƙarfafa ƙarfe, ya kamata a yi amfani da su kawai a cikin simintin da ba a ƙarfafa su ba ko kuma a cikin yanayin da aka ba da kariya mai kyau.Abubuwan haɓaka haɓakar da ba tushen chloride ba, waɗanda yawanci sun ƙunshi nitrate calcium ko tsarin calcium, madadin mafi aminci kuma ana iya amfani da su a cikin siminti mai ƙarfi.

Yadda Accelerating Admixtures Aiki

Haɓaka abubuwan haɗin gwiwa suna aiki ta hanyar haɓaka ƙimar sinadarai da ke faruwa tsakanin siminti da ruwa a cikin siminti.Wannan halayen, wanda aka sani da hydration, shine abin da ke sa cakuda ya taurare kuma ya sami ƙarfi.

Lokacin da aka ƙara haɓaka haɓakawa zuwa gaurayawan kankare, yana aiki azaman mai haɓakawa, yana hanzarta aiwatar da aikin hydration kuma yana barin kankare don saitawa da taurare da sauri.Ƙimar ƙayyadaddun tsarin da abin da ke hanzarta aikin admixtures ya bambanta dangane da nau'in admixture da aka yi amfani da shi.Abubuwan da ke tushen chloride suna aiki ta hanyar rage wurin daskarewa na ruwa a cikin simintin simintin, ba shi damar saitawa da taurare a ƙananan yanayin zafi.Abubuwan da ba na tushen chloride ba suna aiki ta hanyar haɓaka samuwar calcium silicate hydrate (CSH) gel, wanda shine babban abin da ke da alhakin ƙarfin siminti.

Fa'idodin Haɓaka Admixtures

1. Saiti mafi sauri da taurin kai

Babban fa'idar haɓaka abubuwan haɓakawa don kankare shine cewa suna hanzarta saiti da tsarin hardening na cakuda.Wannan yana ba da damar saurin ginin lokutan gini da saurin kammala ayyukan da suka dace da lokaci.

2. Ingantattun Ayyukan Yanayin Sanyi

Haɓaka abubuwan haɗawa suna da amfani musamman a cikin yanayin sanyi, inda siminti na iya ɗaukar lokaci mai tsawo don saitawa da taurare.Ta hanyar haɓaka aikin hydration, waɗannan abubuwan haɗin gwiwa suna ba da damar yin siminti don zubawa da saita shi a ƙananan yanayin zafi.

3. Ƙarfafa Ƙarfi

Baya ga haɓaka saiti da tsarin hardening, wasu abubuwan haɓakawa na iya haɓaka ƙarfin siminti da aka gama.Wannan shi ne saboda suna ƙarfafa samuwar CSH gel, wanda shine babban bangaren da ke da alhakin ƙarfin siminti.

4. Rage Farashin

Ta amfani da hanzarta hanzari na iya taimaka wajen rage farashin ayyukan gabaɗaya ta hanyar saurin aiwatar da ayyukan.Wannan na iya haifar da tanadi akan farashin aiki da sauran abubuwan da suka shafi gini.

Iyaka na Hanzarta Admixtures

1. Hadarin lalata

Yin amfani da hanzari na tushen chlorideadmixturesa cikin simintin da aka ƙarfafa zai iya ƙara haɗarin lalata ƙarfin ƙarfin ƙarfe.Wannan na iya raunana tsarin siminti kuma ya haifar da gyare-gyare masu tsada.

2. Rage Ayyukan Aiki

Ƙara haɓakar haɓakawa zuwa kankare na iya rage yawan aiki, yana sa ya fi wahalar haɗuwa da zuba.Wannan na iya haifar da ƙarin farashin aiki da kayan aiki.

3. Limited Shelf Life

Haɓaka admixtures suna da ƙayyadaddun rayuwar shiryayye kuma suna iya rasa tasirin su akan lokaci.Wannan na iya haifar da buƙatar ƙarin admixture da za a ƙara zuwa gaurayar kankare, wanda zai iya ƙara yawan farashi.

4. Mai yuwuwa don Cracking

Haɓaka abubuwan haɗin gwiwa na iya haifar da siminti don saitawa da taurare da sauri, wanda zai iya ƙara haɗarin fashewa idan ba'a warke cakuda yadda yakamata ba da ƙarfafawa.

Kammalawa

Hanzarta admixtures don kankare kayan aiki ne mai tasiri don hanzarta saiti da tsarin hardening na kankare.Suna da amfani musamman a cikin yanayin sanyi da ayyukan gine-gine masu mahimmanci na lokaci, suna ba da damar saurin kammalawa da rage farashin aiki.Duk da haka, yin amfani da abubuwan da aka haɗa da chloride a cikin simintin da aka ƙarfafa zai iya ƙara haɗarin lalata, kuma abubuwan da ba na tushen chloride ba na iya rage yawan aiki na cakuda.Haɓaka abubuwan haɗaɗɗen ma suna da iyakataccen rayuwa kuma yana iya ƙara haɗarin fashewa idan ba'a warke cakuda da kyau da ƙarfafawa ba.Duk da waɗannan gazawar, haɓaka haɓakawa ya kasance kayan aiki mai mahimmanci ga ƴan kwangila da injiniyoyi waɗanda ke neman haɓaka aikin gini da haɓaka aikin simintin siminti.