A3.5 B05 grade autoclaved aerated concrete block made of quartz weathered sand and its application on the wall
A technology of concrete block and quartz weathered sand, which is applied in the field of new energy-saving and environmentally friendly wall materials, can solve the problems of few building materials enterprises, and achieve the effects of high SiO2 content, fast digestion speed, and inhibition of digestion reaction.
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Embodiment 1
[0039] Quartz weathered sand and phosphogypsum were measured with a belt scale according to the mass ratio of 100:6.2, and were transported to the feed port of the ball mill, and mixed with water and waste slurry (the flow ratio of water and waste slurry was 7:1) to obtain a fineness of 26%, mass percent concentration is 62.0% slurry; broken quicklime, ball milling to prepare quicklime powder, fineness is 12%, digestion time 9min, digestion temperature 81 ℃, A (CaO+MgO) mass fraction 78%; water and The aluminum powder paste is stirred evenly at a mass ratio of 9:1 to form an aluminum paste. The fineness is the mass percentage of the sieve residue of the dry material passing through the 180-mesh standard inspection sieve. The waste slurry described below is that after the leftover waste in the following enters the circulating water, the density formed by stirring is 1.28g / cm 3 The main components of the mixture include water, quartz weathered sand and silica provided by cement...
Embodiment 2
[0048] Quartz weathered sand and phosphogypsum were measured with a belt scale at a mass ratio of 100:6.5, and mixed with water and waste slurry (the flow ratio of water and waste slurry was 7.2:1) to obtain a fineness of 25% and a mass percent concentration of 62.3% slurry; crush quicklime and ball mill to prepare quicklime powder, the fineness is 12%, the digestion time is 12min, the digestion temperature is 82°C, and the mass fraction of A(CaO+MgO) is 76%; water and aluminum powder paste are mixed in a mass ratio of 9 : 1 Stir evenly to form aluminum paste. The fineness is the mass percentage of the sieve residue of the dry material passing through the 180-mesh standard inspection sieve. The waste slurry is the density of 1.25g / cm formed by stirring after the leftovers in the following enter into the circulating water 3 The main components of the mixture include water, quartz weathered sand and silica provided by cement, lime and calcium hydroxide formed by hydration react...
Embodiment 3
[0053]Quartz weathered sand and phosphogypsum were measured with a belt scale according to the mass ratio of 100:7, transported to the feed port of the ball mill, mixed with water and waste slurry (the flow ratio of water and waste slurry was 7.5:1) and mixed to obtain a fineness of 27%, mass percent concentration is 62.2% slurry; broken quicklime, ball milling to prepare quicklime powder, fineness is 11%, digestion time 12min, digestion temperature 81 ℃, A (CaO+MgO) mass fraction 80%; Water and The aluminum powder paste is stirred evenly at a mass ratio of 9:1 to form an aluminum paste. The fineness is the mass percentage of the sieve residue of the dry material passing through the 180-mesh standard inspection sieve. The waste slurry is the density of 1.26g / cm formed by stirring after the leftovers in the following enter into the circulating water 3 The main components of the mixture include water, quartz weathered sand and silica provided by cement, lime and calcium hydroxi...
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