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PROCESS FOR THE DELIVERY AND/OR GUNITING OF MOIST,IN PARTICULAR EARTH-MOIST CONCRETE MIXTURES IN PRESSURIZED AIR CURRENT
PROCESS FOR THE DELIVERY AND/OR GUNITING OF MOIST,IN PARTICULAR EARTH-MOIST CONCRETE MIXTURES IN PRESSURIZED AIR CURRENT
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机译:压缩空气流中特殊土-湿混凝土混合物中水分的输送和/或附着过程
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摘要
The invention concerns a process for delivering and guniting moist, in particular earth-moist or scarcely earth-moist unplastified concrete mixture not containing hardening accelerator in diluted air current, characterized in that prior to guniting we prepare a mixture with a grain structure approaching the composition of the planned concrete and with a module surpassing the planned module, the mixture is gunited as a specimen onto the surface, on basis of the analysis of the gunited fresh concrete and fall-back, as a secondary approach we correct the starting mixture by adding the concrete falling back, wherein grain size is in the range 2ROOT d dmin = 0.9 - 0.3, advantageously 2ROOT d dmin /= 0.5, with the mixture thus obtained a secondary specimen is gunited to the surface, correlation of similarity between the two mixtures is started and at a value of 1.8 2 2.2 of the factor of similarity ( lambda ) actual guniting is performed.
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机译:本发明涉及一种在稀释的气流中输送和喷射不包含硬化促进剂的潮湿的,特别是泥土湿润或几乎泥土湿润的未塑化混凝土混合物的方法,其特征在于,在进行泥土喷射之前,我们制备一种具有接近该组成的颗粒结构的混合物对计划的混凝土进行分析,并在模块超出计划的模块的情况下,根据对已喷射的混凝土的分析和回落,将混合物作为样品试样喷射到表面上,作为第二种方法,我们通过添加以下方法来校正初始混合物倒退的混凝土,其晶粒尺寸在2ROOT d 展开▼