Modified asphalt with high elastic resilience and preparing method thereof

A technology of modified asphalt and a manufacturing method, which is applied in building structures, building components, building insulation materials, etc., can solve the problems of poor toughness, short service life of roads, poor low temperature resistance, etc., and achieves excellent deformation recovery ability, excellent Good self-healing ability and flexibility

Inactive Publication Date: 2016-02-10
FOSHAN GAOFU PETROCHINA FUEL ASPHALT
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Problems solved by technology

[0005] However, the various technical indicators of the existing asphalt SBS modified asphalt have just reached the standard of the Ministry of Communications ("JTGF40-2004 Highway Asphalt Pavement Construction Technical Specifications"), poor toughness, poor fatigue resistance, poor low temperature resistance, road short service life

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  • Modified asphalt with high elastic resilience and preparing method thereof

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Embodiment Construction

[0025] Preferred embodiments of the present invention are described below, and it should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0026] A modified asphalt with high resilience described in the present invention comprises raw materials: Venezuelan crude oil matrix asphalt, catalytic oil slurry desolidified oil, Venezuelan crude oil heavy component oil, modifier and crosslinking agent, and the modifier includes styrene- Butadiene-styrene block copolymer, the crosslinking agent is methyl orthosilicate and titanium acetylacetonate.

[0027] The weight ratio of Venezuelan crude oil base bitumen, catalytic oil slurry desolidified oil, Venezuelan crude oil, modifier and crosslinking agent is: 65%: 18%: 12%: 3%: 2%. At the same time, modified Graphene with 2% weight of permanent asphalt makes the asphalt have excellent comprehensive performance and ...

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Abstract

The invention relates to modified asphalt with high elastic resilience. The modified asphalt with high elastic resilience is prepared from, by weight, 60-75% of Venezuela crude oil matrix asphalt, 15-30% of catalytic slurry oil solid-off oil, 7-20% of Venezuela crude oil heavy constituent oil, 2-5% of a modifying agent and 1-5% of a cross-linking agent. The preparing method comprises the following steps that prepared raw materials enter a pre-mixing tank to be pre-mixed, the pre-mixing temperature is controlled to be increased to 180 DEG C, and the modifying agent is added; the mixture is sheared through a colloid mill after mixing; a sheared semi-product enters a dissolving and expanding tank for dissolving and expanding; the sheared semi-product is then subjected to secondary shearing through a colloid mill pump and enters a reaction tank for a reaction, and a semi-product is obtained; the semi-product is sheared by a colloid pump again and then enters a development tank for development. The modified asphalt has good resilience, excellent deformation recovery capability and good self-healing capability, and can also be applied to production of waterproof roll products.

Description

technical field [0001] The invention belongs to the technical field of asphalt, and in particular relates to a modified asphalt with high resilience and a manufacturing method thereof. Background technique [0002] The modification of asphalt is a physical blending process. After the modifier polymer is added to the asphalt, it forms an elastic grid structure in the asphalt through swelling and adsorption. This grid structure has ideal elasticity, plasticity and extensibility, which improves the performance of asphalt comprehensively. The application of styrene-butadiene-styrene block copolymer (SBS) in asphalt modification has been mature. From the structure of the modifier, the modifier is divided into two types: linear and star. [0003] The modification effect of asphalt is closely related to the chemical composition of base asphalt. Different compatibility process schemes should be selected for different base asphalts. At the same time, the structure of the modifier, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L91/00C08K5/5415C08K5/10
Inventor 豆方杰
Owner FOSHAN GAOFU PETROCHINA FUEL ASPHALT
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