Kapangidwe ka makina a Basalt Ulusi wodulidwa ndi ulusi Konkire

CHIYAMBI CHA CHOPEREKA

Konkriti, monga zipangizo zomangira zomwe zimagwiritsidwa ntchito kwambiri mu uinjiniya wa zomangamanga, ili ndi mphamvu zabwino zamakina, koma chifukwa cha kuzama kosalekeza kwa kugwiritsa ntchito ukadaulo waukadaulo, zofooka za mphamvu zake zazikulu zamakina zimaonekera pang'onopang'ono. Chifukwa cha mphamvu yochepa ya kukanikiza ya gawo limodzi mwa magawo khumi okha a mphamvu yokanikiza, zomwe zimapangitsa kuti ziwalo za njira yokanikiza zikhale zosavuta kusweka, zomwe zimachepetsa mwachindunji kulimba kwa zigawozo, ndikuchepetsa kuchuluka kwa ntchito Zipangizo za Konkires. Pofuna kukonza magwiridwe antchito a konkriti ndi kuthetsa mavuto omwe amabwera chifukwa chogwiritsa ntchito konkriti, akatswiri akhala akukonza magwiridwe antchito a konkriti.zipangizo za konkriti kwa zaka zambiri ndipo apeza zotsatira pagawo lililonse, monga kuwonjezera zosakaniza, kusintha chiŵerengero chosakaniza, kukonza njira zopangira ndi njira zosamalira.

1. Zipangizo zoyesera ndi njira zoyesera

Simenti ya silicate ya P. O 42.5 yachibadwa inasankhidwa, yokhala ndi mphamvu yokakamiza ya 28d ya 48.3MPa ndi mphamvu yopindika ya 28d ya 8.2MPa. Mchenga wapakati wokhala ndi modulus yopyapyala ya 2.5-2.6 unagwiritsidwa ntchito ngati chophatikiza chabwino, chokhala ndi kachulukidwe kowoneka bwino ka 1996kg/m3. Mwala wophwanyika wokhazikika wa 5-27mm unagwiritsidwa ntchito ngati chophatikiza chachikulu, chokhala ndi kachulukidwe kowoneka bwino ka 2737kg/m3. Kuchepetsa madzi kwa 40% kunagwiritsidwa ntchito. 40% ya Sika polycarboxylic acid yothandiza kwambiri yochepetsera madzi inagwiritsidwa ntchito. Kutalika kwa ulusi wodulidwa wa basalt ndi pafupifupi 30mm, m'mimba mwake wa monofilament ndi pafupifupi 15um, kuchuluka kwake ndi 2.7g/cm3, modulus ya elasticity ndi 95-120MPa, mphamvu yomangika ndi 3300-4500MPa, ndipo kutalika kwake pakupuma ndi pafupifupi 2.5-30%.

Kuyenerera koyenera komwe kwagwiritsidwa ntchito mu mayesowa kwawonetsedwa mu Gome 1. Kuyesa kokakamiza kumachitika motsatira Standard for Test Methods of Mechanical Properties of Ordinary Concrete. Kuyesa kokakamiza kumagwiritsa ntchito zitsanzo za 100×100×100mm cubic, zitsanzo zitatu mu gulu lililonse, kuyeretsa kokhazikika kwa 28d.

2. Tndi masitepe

(1) choyamba pukutani chidutswa choyesera chomwe chikuyenera kuyesedwa mutayang'ana mawonekedwe ndi kuyeza kukula kwake, molondola kwa ine. Kusalingana kwa pamwamba pa chonyamulira chitsanzo kumafika 100mm, cholakwika sichiposa 0.5mm, ndipo pamwamba pa chonyamulira ndi kusakhala kozungulira pafupi sikuyenera kukhala kwakukulu kuposa zofunikira za digiri imodzi;

(2) mzere wa chitsanzo cha makina oyesera womwe uli pakati pa mbale yokakamiza pansi pa makina oyesera. Tsegulani makina oyesera, mbale yokakamiza yapamwamba ndi chidutswa choyesera zikatseka, sinthani chothandizira, kuti mphamvu ikhale yofanana;

(3) kuti njira yokwezera ipitirire mosalekeza komanso mofanana, liwiro loyezetsa limatenga 12kN / s-18kN / s; (4) lembani katundu wokwera kwambiri, wolondola mpaka 0.1MPa.

3. Zotsatira za mayeso ndi kusanthula

Monga momwe taonera pa Table 2, mphamvu ya konkire ya 7d yokhala ndi kuwonjezeka kwa Basalt Ulusi umapereka mawonekedwe a kuchepa pang'onopang'ono kosasinthika, komwe kumachitika makamaka chifukwa cha kuwonjezera ulusi wa basalt, mu ulusi ndi simenti zomwe zimapangidwa pamalo olumikizirana kuti apange malo ofooka, ndipo ndi kuwonjezeka kwa kuchuluka kwa kusakaniza kwa ulusi, mtundu uwu wa pamwamba wofooka umapitilirabe kuwonjezeka, kotero mphamvu ya cubic compressive imapitirira kuchepa mwachibadwa. Mphamvu ya 28d compressive ya konkire ndi kuwonjezeka kwa mlingo wa basalt fiber ikuwonetsa chizolowezi cha kuwonjezeka koyamba kenako kuchepa, chifukwa cha kuwonjezeka koyamba kumeneku ndi kuchuluka kochepa kwa doped.ulusi wa basalt zimathandiza kwambiri polumikizana pamlingo winawake pochepetsa kuchepa kwa konkriti yokha, pomwe nthawi yomweyo zimawonjezera malo ofooka poyerekeza ndi kuwonjezeka kwa mphamvu ya 28d kukhala ochepa kwambiri, zomwe zimawonjezera mphamvu pakugwira ntchito konsekonse.

4. Zotsatira

Kuchokera pakuwona mphamvu ya cubic compressive, pamene kusakanikirana kwa ulusi wa basalt wa njira yachidule kumafika pafupifupi 1-1.5% ndi kuchuluka kwa voliyumu, mphamvu ya 7d ndi 28 cubic compressive ya njira yachidule. ulusi wa basalt Konkire imawonjezeka kufika pamlingo winawake poyerekeza ndi konkire yopanda kusakaniza kwa ulusi.