Hunhu hweBasalt Fiber yakachekwa tambo Konkriti

SUMO YECHIGADZIRWA

Konkriti, sechishandiso chekuvaka chinoshandiswa zvakanyanya muinjiniya yezvivakwa, ine hunhu hwakanaka hwemakanika, asi nekushandiswa kwakasimba kwetekinoroji yeinjiniya, zvikanganiso zvehunhu hwayo hwemakanika zvinoonekwa zvishoma nezvishoma. Nekuda kwehunhu hwakaderera hwekusimba kwekumanikidza hwechikamu chimwe chete mugumi chesimba rekumanikidza, zvinoita kuti nhengo dzemaitiro ekumanikidza dzive nyore kutsemuka, izvo zvinoderedza zvakananga kugara kwenguva refu kwezvikamu, zvichideredza huwandu hwekushandiswa kwe Zvinhu zvekongiris. Kuti vagadzirise mashandiro einjiniya ekongiri uye kugadzirisa matambudziko ekushandiswa kwekongiri, nyanzvi dzave dzichivandudza mashandiro ekongiri.zvinhu zvekongiri kwemakore mazhinji uye vakawana mhedzisiro yedanho nedanho, senge kuwedzera zvinosanganiswa, kugadzirisa chiyero chekusanganisa, kuvandudza maitiro ekugadzira uye nzira dzekuchengetedza.

1. Zvinhu zvekuyedza uye nzira dzekuyedza

P. O 42.5 simende yakajairika ye silicate yakasarudzwa, ine simba rekumanikidza re28d re48.3MPa uye simba rekutenderera re28d re8.2MPa. Jecha repakati rine modulus yakapfava ye2.5-2.6 rakashandiswa se fine aggregate, ine density inooneka ye1996kg/m3. Dombo rakapwanyika rakagadziriswa ne continuous graded re5-27mm rakashandiswa se coarse aggregate, ine density inooneka ye2737kg/m3. Rate yekuderedza mvura ye40% yakashandiswa. 40% yeSika polycarboxylic acid inoshanda zvakanyanya kuderedza mvura yakashandiswa. Kureba kwe tambo dzakachekwa dzebasalt fiber inenge 30mm, dhayamita yemonofilament inenge 15um, huwandu hwayo huri 2.7g/cm3, modulus yekusimba kwesimba ndeye 95-120MPa, simba rekudhonza i3300-4500MPa, uye kureba panguva yekuputsika kunenge 2.5-30.%.

Kuenderana kwakakodzera kwakashandiswa mubvunzo iyi kunoratidzwa muTafura 1. Bvunzo yekumanikidza inoshandiswa zvichienderana neStandard for Test Methods of Mechanical Properties of Ordinary Concrete. Bvunzo yekumanikidza inoshandisa 100×100×100mm cubic sampuli, sampuli nhatu muboka rega rega, standard curaving 28d.

2. Tmatanho

(1) tanga wapukuta chidimbu chekuyedza chichaedzwa mushure mekutarisa chitarisiko uye kuyera saizi, nemazvo kwandiri. Kusaenzana kwenzvimbo yekutakura sampuli kunosvika 100mm, chikanganiso hachipfuure 0.5mm, uye nzvimbo yekutakura sampuli uye nzvimbo iri pedyo neiyi haifanirwe kunge yakakura kupfuura zvinodiwa zvedhigirii rimwe chete;

(2) mutsetse wemuenzaniso wemuchina wekuyedza wakabatana nepakati peplate yekumanikidza pasi pemuchina wekuyedza. Vhura muchina wekuyedza, kana plate yekumanikidza yepamusoro nechidimbu chekuyedza zvavhara, gadzirisa rutsigiro, kuitira kuti simba rive rakafanana;

(3) kuti kutakura kurambe kuripo uye kwakafanana, kumhanya kwekutakura kwekuyedza kunotora 12kN / s-18kN / s; (4) kunyora mutoro wepamusoro, wakarurama kusvika ku0.1MPa.

3. Mhedzisiro yebvunzo nekuongorora

Sezvatinoona kubva paTafura 2, simba rekudzvanya rekongiri re7d nekuwedzera kwe Basalt fibers dzinoratidza hunhu hwekudzikira kusingachinji kusvika pakudzikira zvishoma nezvishoma, izvo zvinonyanya kukonzerwa nekuwedzerwa kwefibers dzebasalt, mufibers nesimende zvakagadzirwa panzvimbo inopindirana kuti zvigadzire pamusoro usina simba, uye nekuwedzera kwehuwandu hwekusanganisa fibers, rudzi urwu rwepamusoro usina simba runoramba ruchiwedzera, saka simba rekumanikidza re cubic rinoramba richiderera. Simba rekumanikidza re 28d rekongiri nekuwedzera kwehuwandu hwefiber yebasalt rinoratidza maitiro ekuwedzera kwekutanga uye kuderera, chikonzero chekuwedzera uku kwekutanga ishoma doped.shinda dzebasalt zvinoita basa rekubatanidza kusvika pamwero wakati mukuderedza shrinkage deformation yekongiri pachayo, ukuwo zvichiwedzera kushaya simba pamusoro kana tichienzanisa nekuwedzera kwesimba re28d kuti zvive zvishoma, izvo mukushanda kwese kwesimba zvinowedzera.

4. Mhedzisiro

Kubva pamaonero esimba rekudzvanya kwecubic, kana kusanganiswa kwe shortcut basalt fiber kuchisvika pa1-1.5% ne vhoriyamu muzana, simba rekudzvanya re 7d ne 28 cubic re shortcut. faibha yebasalt kongiri inowedzerwa kusvika pamwero wakati zvichienzaniswa nekongiri isina kusanganiswa nefiber.