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Water power engineering asphalt and preparation method thereof

An asphalt and hydraulic technology, applied in building components, building insulation materials, buildings, etc., to achieve the effects of convenient construction, low cost and simple structure

Inactive Publication Date: 2008-04-23
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no official hydraulic asphalt standard in China, and most domestic large-scale hydraulic projects refer to or adopt foreign standards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Weigh by weight: 95 parts of Maoming 90# asphalt; 2.5 parts of SBS modifier; 2 parts of SBR modifier.

[0018] First, melt heavy traffic asphalt at 163°C and heat it to 180°C, then add SBS and SBR modifiers into the asphalt and stir evenly for 40 minutes. Then, the swollen asphalt is sheared for 35 minutes with a shearing machine at 180°C and a rotation speed of 3000-4500r / min. Finally, put the prepared hydraulic asphalt into the container, seal it against water and dust, prevent impurities from being mixed in, and pack it to obtain the finished product.

Embodiment 2

[0020] Weigh by weight: 97 parts of Daying 100# asphalt; 1 part of SBS modifier; 3 parts of SBR modifier; 1.5 parts of sulfur.

[0021] First, melt heavy traffic asphalt at 163°C and heat it to 180°C, then add SBS and SBR modifiers into the asphalt and stir evenly for 35 minutes. Then, cut the swollen asphalt with a shearing machine for 40 minutes at 180°C and a rotation speed of 3000-4500r / min, add sulfur, and stir evenly. Finally, put the prepared hydraulic asphalt into the container, seal it against water and dust, prevent impurities from being mixed in, and pack it to obtain the finished product.

Embodiment 3

[0023] Weigh by weight: 96 parts of Maoming 90# asphalt; 3 parts of SBS modifier; 4 parts of SBR modifier; 1 part of sulfur.

[0024] First, melt heavy traffic asphalt at 163°C and heat it to 180°C, then add SBS and SBR modifiers into the asphalt and stir evenly for 45 minutes. Then cut the swollen asphalt with a shearing machine for 30 minutes at 180°C and 3000-4500r / min, add sulfur and stir evenly. Finally, put the prepared hydraulic asphalt into the container, seal it against water and dust, prevent impurities from being mixed in, and pack it to obtain the finished product.

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PUM

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Abstract

The present invention discloses one kind of hydrotechnic asphalt and its preparation process. The hydrotechnic asphalt consists of asphalt 95-97 weight portions, SBS modifier 1-5 weight portions and SBR modifier 1-4 weight portions; and may have sulfur in at most 2 weight portions added for further raised hydrotechnic performance. It has high antiseepage performance, osmotic coefficient lower than 10-7 cm / s or similar to that of steel plate, low cost, high plasticity and elasticity, capacity of suiting the inhomogeneous settlement of dam body, convenient construction and other advantages.

Description

【Technical field】 [0001] The invention relates to the fields of engineering and chemical industry, in particular to the field of special asphalt. 【Background technique】 [0002] Hydraulic asphalt is mainly used for asphalt concrete inclined walls and core walls of earth-rock dams. Because asphalt concrete is superior to cement concrete in terms of plasticity, flexibility, impermeability, joint treatment, ability to adapt to deformation, inspection and maintenance, etc., in future large-scale water conservancy and hydropower projects, asphalt concrete anti-seepage may replace Cement concrete anti-seepage. [0003] Due to its good anti-seepage performance and excellent deformation capacity, asphalt concrete is increasingly used in anti-seepage bodies of earth-rock dams, channels, canals, upper and lower reservoirs of energy storage power stations, etc. in water conservancy and hydropower projects, and has a good application prospect. [0004] Hydraulic asphalt concrete is a ...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08K3/06C08L53/02
Inventor 杜鹏超何唯平
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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