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A high thermal insulation and block technology, applied in the field of multifunctional building blocks and high strength and high thermal insulation blocks, can solve the problems of uneven water retention rate, low thermal conductivity, low dry density of thermal insulation blocks, etc., and achieve uniform and stable thermal insulation performance. , good breathability, good water retention and construction effect
Active Publication Date: 2017-01-04
泗阳托马斯建材科技有限公司
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Problems solved by technology
These two types of thermal insulation blocks have low dry density and small thermal conductivity, but their compressive strength is only about 1 / 4 of that of conventional thermal insulation blocks.
[0006] 2. The water retention rate of the block is low, and the water retention rate is uneven. The local part of the block is easy to accumulate water, which breaks out from the large pores, and the thermal insulation block is prone to local cracks due to environmental reasons such as water vapor, etc.
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Embodiment 1
[0040] Adjust the ratio as follows:
[0041] (1) 40 parts by weight of Portland cement;
[0042] (2) 5 parts by weight of ordinary yellow sand;
[0043] (3) 0.1 parts by weight of the main activator is hydrotalcite with a particle size of 5-100 nanometers.
[0044] The main properties of the block are: water retention rate 99.3%, thermal conductivity 0.29W / m.K, compressive strength 17.6MPa, dry density 1.751g / cm 3 .
Embodiment 2
[0046] Adjust the ratio as follows:
[0047] (1) 20 parts by weight of Portland cement;
[0048] (2) 60 parts by weight of ordinary yellow sand;
[0049] (3) 5 parts by weight of the main activator, selected from hydrotalcite with a particle size of 5-100 nanometers.
[0050] The main properties of the block are: water retention rate 99.4%, thermal conductivity 0.27W / m.K, compressive strength 16.5MPa, dry density 1.721g / cm 3 .
Embodiment 3
[0052] Adjust the ratio as follows:
[0053] (1) 30 parts by weight of Portland cement;
[0054] (2) 50 parts by weight of ordinary yellow sand;
[0055] (3) 8 parts by weight of the main activator, selected from hydrotalcite with a particle size of 5-100 nanometers.
[0056] The main properties of the block are: water retention rate 99.6%, thermal conductivity 0.25W / m.K, compressive strength 13.1MPa, dry density 1.668g / cm 3 .
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Abstract
The invention discloses a high-strength and high-insulation block, which comprises the following materials: 20-40 parts by weight of cement, 5-60 parts by weight of yellow sand, and 0.1-8 parts by weight of a main activator; wherein , the main activator is hydrotalcite or hydrotalcite-like. In the formula composition of the block, the combination of cement, yellow sand and the main activator produces a synergistic effect: the trace multivalent metal ions in the cement produce a complex reaction with the main activator, and the multivalent metal ions in the quartz sand or the two SiO-Water interface complexes, activates the surface of cement and quartz sand, changes the conventional stacking state of cement, and forms a huge network complexation structure in the system; at the same time, when the main activator and the multivalent metal ion At the same time, the layers of the main activator are stretched, and nanopores of about 1-5nm are uniformly formed; so that the obtained block has good strength, thermal insulation performance, water retention, and construction.
Description
technical field [0001] The invention relates to building materials, in particular to a high-strength and high-insulation block, which is a multi-functional building block that can be used not only as a structural material for a weighing wall, but also as an insulation material. Background technique [0002] Ordinary blocks, including hollow blocks, mostly use coal slag, coal gangue, pumice ceramsite as coarse aggregate, fly ash, slag, etc. as fine aggregate, and ordinary Portland cement as adhesive. made. [0003] Among them, in the design of the thermal insulation block, on the one hand, the thermal insulation performance of the thermal insulation block is improved through the structural setting of the thermal insulation block, such as setting a number of hollow layers, extending the thermal bridge, etc.; The material and formula of the block are improved to improve its thermal insulation performance. In terms of the formulation of thermal insulation blocks, it is common ...
Claims
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Application Information
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