Jiangxi Nanchang: "Ultra-cold cement" tau tsim tawm, muab kev txias, tiv taus hluav taws, thiab tiv taus siab.

CCTV.com tshaj tawm tias ntawm xya qhov kev ua tiav tseem ceeb ntawm kev tshawb fawb thiab thev naus laus zis ntawm Tuam Tshoj txoj kev lag luam khoom siv hauv tsev xyoo 2025, muaj ib yam khoom tshiab uas cuam tshuam nrog kev tsim kho tsev zoo - ib qho "ultra-cold cement" uas tuaj yeem txias nws tus kheej yam tsis muaj hluav taws xob, thiab nws kuj muaj zog tiv taus hluav taws thiab tiv taus siab.

Thaum lub sijhawm sim, qhov kub sab nraum zoov uas tus neeg sau xov xwm nyob yog kwv yees li 20 degrees Celsius. Lub ntsuas kub tau nce mus txog 40 degrees Celsius sai sai. Qhov kub ntawm lub slab uas muaj cov khoom "super-cool cement" tau poob qis sai sai mus txog li 24 degrees Celsius. Txawm hais tias nws yog lub caij ntuj no, qhov sib txawv ntawm qhov kub ntawm ob lub slabs tau tshaj kaum degrees Celsius, qhia txog qhov txias zoo heev ntawm cov khoom "super-cool cement".

Cov khoom siv "ultra-cold cement" tsis yog tsuas muaj lub luag haujlwm txias xwb tab sis kuj tseem tiv taus hluav taws Class A. Tus neeg sau xov xwm tau tsom rab phom tsuag rau ob txheej sib txawv; txheej txheem ib txwm nyob rau sab laug twb pib kub hnyiab lawm, thaum txheej txheem "ultra-cold cement" nyob rau sab xis tsis qhia tias kub hnyiab. Tom qab kub hnyiab, sab laug tseem kub hnyiab, thaum sab xis tsis qhia tias kub hnyiab.

Cov cement txias heev "concrete" muaj lub zog compressive zoo heev. Thaum lub sijhawm sim lub zog compressive, lub vijtsam qhia txog kev siab nce ntxiv tas li ntawm cov concrete sim. Lub sijhawm uas cov concrete tawg, lub siab tshaj 100 MPa.

Cov kws tshawb fawb piav qhia tias cov khoom tshwj xeeb ntawm "ultra-cold cement" yog los ntawm nws qhov kev cuam tshuam ntawm lub hnub ci siab (96.2%) thiab kev xa hluav taws xob thermal (96%). Los ntawm ob qho txiaj ntsig ntawm "kev cuam tshuam + hluav taws xob," nws ua tiav kev txias tas mus li yam tsis tas siv hluav taws xob. Cov khoom siv no kuj muaj Chav Kawm A tiv taus hluav taws thiab lub zog compressive siab, thiab tuaj yeem siv dav hauv kev tsim ru tsev, phab ntsa sab nraud, txoj kev hauv nroog, silos nplej, thiab chaw cia khoom txias, muab kev txhawb nqa zoo rau kev txo qhov cuam tshuam ntawm cov kob kub hauv nroog thiab txo kev siv hluav taws xob hauv tsev.