Zobrazeno 1 - 3
of 3
pro vyhledávání: '"spray sealing"'
Publikováno v:
矿业科学学报, Vol 9, Iss 3, Pp 455-463 (2024)
Sprayed fireproofing materials in underground coal mine roadways are limited due to their poor adhesion, easy-to-crack, easy-to-fall off and poor sealing effect. This study therefore develops a fireproofing spraying material with fly ash as aggregate
Externí odkaz:
https://doaj.org/article/2676e928daf94ac5a88bfc042fa0bb7b
Autor:
Zhang, Fengjie a, ⁎, Liu, Wei a, b, ⁎⁎, Qin, Yueping a, b, Chu, Xiangyu a, Xu, Hao a, c, Wu, Fan a, Li, Yahui d
Publikováno v:
In Process Safety and Environmental Protection January 2023 169:534-546
Publikováno v:
Gong-kuang zidonghua, Vol 47, Iss 12, Pp 19-24 (2021)
The sealing quality of extraction drilling is the key factor affecting gas extraction and outburst elimination. In order to solve the problems of poor quality of passive hole sealing, low gas concentration in drilling and extraction, and cumbersome p
Externí odkaz:
https://doaj.org/article/59b4ff5700f04bd7a31b9c1c7e543378