RU1713232C - Mineral powder for asphalt-concrete mixture - Google Patents

Description

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The invention relates to: road-building materials, namely, compositions of mineral powders; and can be used in the construction of asphalt concrete pavements.

1 An object of the invention is to reduce the porosity, bitumen and mineral powder, and to increase the density, strength and water resistance of asphalt based on it.

Mineral powder is prepared as follows.

The fatty waste from the processing of marine fish, shale oil, viscous bitumen mix is taken to a uniform concentration at 10 ° G, the resulting mixture is mixed with a clay lime with a content of clay impurities up to 25% and then ground in a ball mill until it reaches the granularity corresponding to the requirements of TOST 16557 -78. Mineral Powder Compositions

are given in table 1, and the results of test NII - in tab. 2.

Physico-mechanical characteristics of sand asphalt using

Mineral powders are given in Table 3.

From the data given in tables 2 and 3, it follows that the proposed mineral powder is characterized by reduced

indicators of porosity, bitumen intensity and swelling, and asphalt concrete based on it has an increased plane, strength and water resistance. (56) Copyright certificate .SSSR

M "933651 i cl. C 04 V 13/30, 1980.

Sotnikova V.N. Materials used to prepare activated mineral powders. / Sat Issues of building asphalt-concrete coatings using activated mineral materials, Proceedings of Soyuzdorniya, 1972, issue 56, pp. 21-29.,

Table 1

Table 2 Form 1 and zoberet MINERAL POWDER FOR ASPHALT CONCRETE MIXTURE, including the product of processing of oil shale, into viscous bitumen and clay is known to contain clay impurities up to 25%, characterized in that, in order to reduce porosity, bitumen intensity and swelling. mineral powder, as well as increasing the density, strength and water resistance of asphalt concrete based on it, it contains Table 3 as a product of the processing of oil shale, shale oil and additional fatty waste from marine fish processing the corresponding ratio of components, May. %: Shale oil 0.67 - 0.80 Viscous bitumen 0.67-0.8.0 Fatty waste from marine fish processing 0.40 - 0.66; Clay is known to contain clay impurities I up to 25%