Chikhalidwe cha misewu zimadalira kugwilizana wa phula amaika mumsewu luso

Mfundo zimenezi phula, anthu odziwika kwa nthawi yaitali. Natural phula (phiri utomoni chikukhudza chisakanizo cha phula ndi zipangizo mchere) ngakhale wakale Aiguputo ndi Foinike monga binder ntchito yomanga nyumba ndi zombo. South American Indians ntchito phula kuti mutipatse mabwato awo. Phula anamugwiritsa ntchito Aiguputo kukonzera mitembo kuti isawonongeke, ndi pa East wake ankaona mankhwala. Komanso, zachilengedwe phula yotengedwa Dead Sea bedi, ntchito (ndi kugwiritsira ntchito) kulenga vanishi ndi utoto.

Ntchito phula yokumba (phula osakaniza ting'onoting'ono basi, mwala wosweka, mchenga, mchere ufa) monga mfundo amaika mumsewu njira idayamba mochedwa XIX atumwi ku Europe ndi USA. Pa nthawi yomweyo tinayamba ntchito phula ndi Russia.

Kumene, kuyambira phula atagona luso, kupanga ake lasintha kwambiri, koma mfundo sizinasinthe.

yomanga Modern msewu

Mkhalidwe wofunika kwambiri kwa magalimoto wabwinobwino ndi njira yopanga olimba katundu pamwamba msewu. Popanda zolowa yachibadwa misewu ano wopalidwa kuli kovuta, choncho kumanga motorway ndi patsogolo kwa dziko.

Compliance phula atagona luso ndi dzuwa ake mwachindunji zokhudzana ndi kupanga ndi khalidwe ulamuliro wa kugwiritsidwa ntchito kupanga phula pavements. Kulephera kutsatira zotsatira zoopsa msanga kwa panjira ya.

Zomwe a sayansi yamakono n'zotheka kuti kosalekeza bwino ngati zikuchokera zikuluzikulu za phula, ndi ndondomeko yonse ya ulimi wa ntchito msewu.

Ngati ife kulankhula za sayansi ya phula, zachitika mu magawo anayi:

• maphunziro m'munsi;
• Kutentha phula kuti afewetse izo;
• kuika wa phula pa tsinde ndi;
• Anagubuduza-phula compactor kuti potero ndi kusalaza izo.

Akamaliza zinthu zimenezi, phula ayenera kukhala ena nthawi yochiritsa wathunthu ndi kupeza kapangidwe mphamvu.

luso limeneli zoletsa aakulu pa dongosolo la zochita mogwirizana ndi zopinga nyengo ndi nyengo. Satsatira malamulo amenewa (mwachitsanzo, mkhutu stacking ndondomeko kapena otsika kutentha, mvula) kumabweretsa mfundo yakuti m'misewu adzakhala zosakwana yachibadwa.

Ngakhale mosamalitsa ndondomeko yonse ya umisiri phula sizitanthauza kuti padziko msewu sikutanthauza kukonza zina ndi kukonza yake.

Kugwiritsa ntchito phula ozizira kukonza msewu

Nkhanizi anaonekera ndi posachedwapa m'dziko lathu. Chopangidwa kuchokera ochiritsira polima-kusinthidwa phula ndi anawonjezera chisanu ndi plasticizing zina. Cold phula atagona luso kwambiri zimatithandiza ndondomeko yokonza njira, chifukwa amalola kuchita mu yotakata kutentha osiyanasiyana. Izo zikhoza kuikidwa pa otsika kutentha (-15 ° ^C). Komanso, ntchito njira angathe kuchitidwa mu nyengo ya mvula. Pakuti atagona phula ozizira sikutanthauza chisanadze mankhwala ndi phunziroli ❖ kuyanika anakonza. Koma mwayi chofunika kwambiri ndi phula ozizira, - luso atagona nkhaniyi sikutanthauza zipangizo zina zapadera. Ndi zokwanira kutsanulira Nakonso kapena dzenje ndi angaimbidwenso fosholo, kenako ndondomeko polymerization akuyamba ndi phula ikamauma mofulumira. Monga mtengo, ngati poyerekeza ndi mtengo wa kukonza nthawi misewu ndi phula ochiritsira, likukhalira kuti ntchito phula ozizira adzakhala mtengo.