High-elasticity anti-cracking tunnel residue shotcrete material and preparation method thereof
A sprayed concrete and high-elastic technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of stacking land occupation, inconvenient transportation, and difficult handling, so as to save resources, save costs, The effect of reducing dosage
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[0028] Example 1
[0029] A high-elastic-anti-cracking hole slag shotcrete material, the shotcrete material includes the following components: 408kg / m 3 Portland cement (specific surface area is 300~400m 2 / kg), 51kg / m 3 Rubber particles (particle size 20-100 mesh), 716kg / m 3 The hole slag machine-made sand fine aggregate (the particle size exceeds the 3mm particle size sieve), 767kg / m 3 Coarse aggregate (stones with a particle size of 5-10mm), 7.65kg / m 3 Chopped basalt fiber (length 12mm~35mm), 102kg / m 3 Class I fly ash (specific surface area is 300~430m 2 / kg), 1.5kg / m 3 Carboxymethyl cellulose sodium salt rheological thickener, 9.2kg / m 3 Of polycarboxylic acid type water reducing agent and 25.5kg / m 3 The alkali-free liquid accelerator.
[0030] A method for preparing high-elastic-anti-cracking hole slag shotcrete material includes the following steps:
[0031] 1) First, add the Portland cement of the formula into the forced mixer, then add the rubber particles and basalt chopped fi...
Example Embodiment
[0035] Example 2
[0036] A highly elastic-anti-cracking hole slag shotcrete material, the shotcrete material includes the following components: 460kg / m 3 Portland cement (specific surface area is 300~400m 2 / kg), 110kg / m 3 Rubber particles (particle size 20-100 mesh), 720kg / m 3 The hole slag machine-made sand fine aggregate (the particle size exceeds the 3mm particle size sieve), 725kg / m 3 Coarse aggregate (stones with a particle size of 5-10mm), 5.1kg / m 3 Chopped basalt fiber (length 12mm~35mm), 102kg / m 3 Of fly ash beads (specific surface area is 420~450m 2 / kg), 3.0kg / m 3 Carboxymethyl cellulose sodium salt rheological thickener, 11.0kg / m 3 Polycarboxylic acid type water reducing agent and 12.8kg / m 3 The alkali-free liquid accelerator.
[0037] A method for preparing high-elastic-anti-cracking hole slag shotcrete material includes the following steps:
[0038] 1) First, add the Portland cement of the formula to the forced mixer, then add the rubber particles and basalt chopped fib...
Example Embodiment
[0042] Example 3
[0043] A highly elastic-anti-cracking hole slag shotcrete material, the shotcrete material includes the following components: 510kg / m 3 Portland cement (specific surface area is 300~400m 2 / kg), 76.5kg / m 3 Rubber particles (particle size 20-100 mesh), 767kg / m 3 The hole slag machine-made sand fine aggregate (the particle size exceeds the 3mm particle size sieve), 691kg / m 3 Coarse aggregate (stones with a particle size of 5-10mm), 10.2kg / m 3 Chopped basalt fiber (length 12mm~35mm), 21kg / m 3 Class I fly ash (specific surface area is 300~430m 2 / kg), 30kg / m 3 Of fly ash beads (specific surface area is 420~450m 2 / kg), 1.5kg / m 3 Carboxymethyl cellulose sodium salt rheological thickener, 7.9kg / m 3 Of polycarboxylic acid type water reducing agent and 15.3kg / m 3 The alkali-free liquid accelerator.
[0044] A method for preparing high-elastic-anti-cracking hole slag shotcrete material includes the following steps:
[0045] 1) First, add the Portland cement of the formula in...
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