Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Proportioning method of high-strength concrete for mine underground guniting support
The invention relates to a proportioning method of high-strength concrete for mine underground guniting support. The concrete comprises the following components: water, cement, silica fume, coal cinder ash, mountain sand, river sand, high-strength iron tailings, reselected pebble pieces, a superplasticizer, an alkali-free accelerator, high-strength synthetic fibers, xanthate, terpenic oil and rosin thermal polymerization soap, and the components are mixed according to a certain mass ratio to prepare the high-strength concrete. According to the scheme, the concrete production cost can be effectively reduced, the compressive strength of the shotcrete supporting concrete is improved, the breaking strength of the concrete is enhanced, the injection resilience value is reduced, the roadway supporting condition of an ore rock crushing area is effectively improved, and safe production is guaranteed.
本发明涉及一种矿山井下喷浆支护高强度混凝土配比方法，混凝土的组分如下：水、水泥、微硅粉、煤渣灰、山砂、江砂、高强度铁尾砂、重选石子片、超塑化剂、无碱速凝剂、高强度合成纤维、黄药、松醇油以及松香热聚皂，上述组分按照一定的质量配比混合制成高强度混凝土。该方案可以有效的降低混凝土生产成本，提高喷浆支护混凝土的抗压强度、增强混凝土的抗折强度、降低喷射回弹量，有效改善矿岩破碎区域的巷道支护状况，保证安全生产。
Proportioning method of high-strength concrete for mine underground guniting support
The invention relates to a proportioning method of high-strength concrete for mine underground guniting support. The concrete comprises the following components: water, cement, silica fume, coal cinder ash, mountain sand, river sand, high-strength iron tailings, reselected pebble pieces, a superplasticizer, an alkali-free accelerator, high-strength synthetic fibers, xanthate, terpenic oil and rosin thermal polymerization soap, and the components are mixed according to a certain mass ratio to prepare the high-strength concrete. According to the scheme, the concrete production cost can be effectively reduced, the compressive strength of the shotcrete supporting concrete is improved, the breaking strength of the concrete is enhanced, the injection resilience value is reduced, the roadway supporting condition of an ore rock crushing area is effectively improved, and safe production is guaranteed.
本发明涉及一种矿山井下喷浆支护高强度混凝土配比方法，混凝土的组分如下：水、水泥、微硅粉、煤渣灰、山砂、江砂、高强度铁尾砂、重选石子片、超塑化剂、无碱速凝剂、高强度合成纤维、黄药、松醇油以及松香热聚皂，上述组分按照一定的质量配比混合制成高强度混凝土。该方案可以有效的降低混凝土生产成本，提高喷浆支护混凝土的抗压强度、增强混凝土的抗折强度、降低喷射回弹量，有效改善矿岩破碎区域的巷道支护状况，保证安全生产。
Proportioning method of high-strength concrete for mine underground guniting support
一种矿山井下喷浆支护高强度混凝土配比方法
XU ZHICHENG (Autor:in)
30.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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