B25 (kongiri): unhu uye kushandisa

Concrete zvinoreva mukuru zvokuvakisa. The kupikidura kare dzevanhu ugaro nzvimbo paNyika dzakaratidza kuti kushandiswa kwayo akatanga anopfuura zviuru 6 apfuura. Zvino pamwe ndiye kupfuura zvinowanzovapo zvokuvakisa. Ngatikurukurei muudzame imwe mhando zvayo - B25-kongiri.

Kunaka kongiri

The chikuru huru zviratidzi rakanaka nekongiri ndiye simba compressive. Izvi inorondedzera kirasi nekongiri zvatariswa zvinoratidzwa tsamba "B" (Latin), uye nhamba zvakafanana (mu makirogiramu pa pachivara cm), kuti bvumidzwa mutoro pamusoro payo. Saka, Kirasi B25 kongiri angakudzivisai mutoro 25 makirogiramu / ba. cm. nekongiri Zvivako mukirasi iyi kusanganisira coefficients vanokwanisa withstanding mutoro 327 makirogiramu / ba. masendimita, izvo rinoenderana zvizivikanwe M350 simba.

workability

maitiro ichi anosarudza chokupika chesamende kana rinoshandiswa. Maererano GOST 7473-94, zvinoita ichi chinozivikanwa tsamba "P" uye integer kubva 1 kusvika 5, yakafanana nyoro kongiri ane neukukutu asingasviki 4 masekonzi uye vakakamurwa slump. In slump uyu (mu masendimita) 1-4, 5-9, 10-15, 16-20 uye pamusoro 21 inoratidza kubva p1 kuna P5, ukuwo.

zvoupenyu chikumbiro

Concrete B25 (M350 muchiso) kwakakurumbira chaizvo mumakore achangopfuura, izvo zviri kukonzerwa tightening zvaidiwa kuti mabasa uye kuwedzera masimba pamusoro kuchengetwa yavo. Ndicho chikonzero kuti zvizivikanwe vakatanga kugara inonyanya nzvimbo Nhamba dziri rokutengesa nekongiri zvigadzirwa.

High simba unhu inopa nhamba yepamusoro esimende mu murwiyo zvinhu B25 (kongiri). Saka, mashoko aya chinonyanya kushanda mumunda kuvakwa multi-storey zvivakwa, nokuti zvaAtemisi zvikuru mupfungwa yanyatsosimba kongiri zvivako (matanda, Slabs, mbiru), akaverenga kusanganisira kushanda munharaunda utsinye.

In yayo sezvamunoita-B25 kongiri rinonyanya unotora, mukuwedzera kuumba, girenayiti mavhu kana akapwanyika ibwe, kushambidzwa remurwizi. On kumusika kuti zvokuvakisa zvinogona akarayira pamwe wakurukura ari mixers, kongiri mixers muchimiro dzinonzi vakagadzirira-kunovhengana kongiri pamwe p2-P4 mufambo.

Concrete B25 (M350 Brand) kunoratidzwa yakakwirira tsika zviratidzi ose chando nemishonga uye mvura nemishonga. Saka, rinoshandiswa chaizvo akajeka yakasimba nheyo (pamusoro ndiro, columnar, murwi-rostverkovyh uye tepi), uyewo chesamende masitepisi. Pazviri toga mudzimba (uye mumaindasitiri nemauto) vari vakakanda mbiya nembiya, monolithic Slabs uye masvingo. B25-kongiri iri rakasimba zvikuru uye husingakwanisi abrasion. Kubva chiratidzo ichi, zvikurukuru, akaita mugwagwa Banga ndiro kushanda mumamiriro ezvinhu akaomesesa ekunze. Zvebhizimisi kuvaka rinoshandiswawo nevakawanda nechinangwa kurudziro uye awedzere rakavimbika zvivako uye zvimwe zvivako.

Concrete B25: mutengo

mamakisi ichi nekongiri mutengo pasi ano ezvinhu waisiyana vaburitsi ari nani siyana. It zvinoenderana zvinhu zvakadai napedyo kuna yamabwe, zvinopa mbishi zvinhu uye nevatengi nhumbi, pachake yokuchengetera zvinhu, nezvifambiso uye zvokutengeserana uye realizable chawo, pakupedzisira, mukurumbira akaigadzira ndiye zvokuvakisa pamusika. Mari inobvawo pane ukuru mufambo pamusoro kongiri: dzakanga ndiko, mashoko anodhura. Price uye dzinosiyana-siyana zvichienderana zvinoumba fillers. Yemanyorero kongiri pahwaro mavhu ndiyo isingadhuri kupfuura zvinhu zvakavakirwa yakapwanyika girenayiti. Chimwe acho isingadhuri kubva , zvishandiswezve marara yaunganidzwa kukuya kongiri hurongwa. Paavhareji, B25-kongiri zvinogona kutengwa (dzakakudzingai pakukurukura) pane imwe mutengo 3,000 kusvika 3,800 rubles. muzana mamita ^3.

unozviita

Muzviitiko apo kudiwa diki mavhoriyamu B25, chaicho chinogona kuitwa pamusoro dzavo. Nokuti chinangwa ichi zvakafanira kusanganisa samende, jecha uye filler zvinotevera volumetric kukura: simende M500 - 1: 1.9: 3.6; kuumba M400 - 1: 1.5: 3.1. Mvura yebhasera mari kuti vawane achida Rigidity. Zvakakosha kutevera vamwe mitemo:

• Chete vanoshandisa zvishandiso yakachena uye mvura;
• nani kushandiswa kushambidzwa jecha, mavhu kana akapwanyika ibwe (ivhu netsvina kuderedza simba zvinhu);
• Usawedzera mvura pashure kukanya mhinduro (kana akawedzera simba inorasika nyaya);
• Zvingagadziriswa inofanira kushandiswa mukati awa rimwe pashure gadziriro.

The filler angashandiswa norukangarabwe, vanonetseka girenayiti dombo, reraimu kana yechipiri. For kongiri muchiso M350 haana kushandisa fillers zvakadai rakawedzerwa ivhu, gang nezvimwe dombo porous, kuti murege kupa simba kunodiwa zvokunyama.

Saka, munyaya ino isu akatarisa mashoko pamusoro kongiri rudzi, vakawanda rinobatsira STRUCTURAL mativi uye yakakwirira simba chivakwa. Tinovimba kuti mashoko ari munyaya ino ichava richishanda kwauri.