Harmonized waterproof asphalt and application thereof

Abstract

The present application belongs to the field of building waterproof materials, and particularly relates to a blended waterproof asphalt and application. The blended waterproof asphalt is blended by heavy oil with a flash point greater than 180 DEG C and No. 10 building petroleum asphalt with a softening point greater than 100 DEG C according to a set proportion to form blended waterproof asphalt with a softening point greater than 80 DEG C. The technical scheme blends the heavy oil with the No. 10 building petroleum asphalt to form blended waterproof asphalt with a softening point greater than 80 DEG C, improves the utilization value of the heavy oil, and adds a small amount of alkyl aluminum oxyalkane in the blending process to make part of the components in the heavy oil and part of the components in the No. 10 building petroleum asphalt copolymerize, thereby improving the waterproof performance and improving the softening of the present waterproof coiled material in summer high temperature.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of building waterproof materials, and particularly relates to a blended waterproof asphalt and application. BACKGROUND

[0002] Heavy washing oil is a byproduct of washing oil rectification process, and is rich in asphaltene and has high viscosity and complex components, wherein naphthalene, fluorene, oxyfluorene and methyl oxyfluorene are main components, the melting point is between 95-115 DEG C, the boiling point is between 270-300 DEG C, and most of the heavy washing oil is treated as fuel oil, and the value utilization rate of the product is low. The heavy washing oil is rich in aromatic hydrocarbon oil and has good compatibility with SBS modifier, so that the performance of SBS modified asphalt and related materials can be improved. SUMMARY

[0003] The application aims to provide a blended waterproof asphalt and application, which can improve the high and low temperature performance of modified asphalt waterproof roll material, so that the heavy washing oil can be used with high value, and the safety problem of high temperature processing of SBS modified asphalt can be avoided.

[0004] To achieve the above-mentioned purpose, the application is realized by the following technical scheme:

[0005] A blended waterproof asphalt is prepared by blending heavy washing oil with a flash point greater than 180 DEG C and No. 10 building petroleum asphalt with a softening point greater than 100 DEG C according to a set proportion, so as to form blended waterproof asphalt with a softening point greater than 80 DEG C.

[0006] Further, the heavy washing oil has an open flash point greater than 180 DEG C and a 100 DEG C kinematic viscosity greater than 13 mm / s.

[0007] Further, the mass ratio of the heavy washing oil to the No. 10 building petroleum asphalt is 5%:95%-10%:90%.

[0008] The blending process of the blended waterproof asphalt of any one of the above is as follows: a set amount of heavy washing oil is added into a blending kettle and heated to 120 DEG C, then a toluene solution of alkyl aluminum oxyalkyl with a mass percentage of 0.5-2% of the heavy washing oil is added, and then a set amount of No. 10 building petroleum asphalt is added, and then the temperature is increased to 170-200 DEG C, and at the same time, stirring is carried out at 100-200 r / min for 10-30 min, and then natural cooling is carried out to room temperature, so as to obtain the blended waterproof asphalt.

[0009] Further, the concentration of the toluene solution of alkyl aluminum oxyalkyl is 1 mol / L.

[0010] An application, the blended waterproof asphalt prepared by any one of the above is added into SBS modified asphalt waterproof roll material according to a set proportion.

[0011] Further, the blending waterproof asphalt has an adding mass percentage of 3-5% in the SBS modified asphalt waterproof coiled material.

[0012] The beneficial effects of the present application are:

[0013] The technical scheme improves the utilization value of the heavy wash oil by blending the heavy wash oil with the No. 10 building petroleum asphalt to form the blending waterproof asphalt with a softening point greater than 80 DEG C, and by adding a small amount of alkyl aluminum oxide alkane in the blending process, the copolymerization reaction of part of components in the heavy wash oil and part of components in the No. 10 building petroleum asphalt occurs, the waterproof performance is improved, and the softening condition of the present waterproof coiled material in the high temperature of summer is improved. DETAILED DESCRIPTION

[0014] The technical scheme of the present application is described in detail through the following examples, and the following examples are only exemplary and can only be used to explain and illustrate the technical scheme of the present application, but cannot be interpreted as a limitation of the technical scheme of the present application.

[0015] The present application is specifically described in combination with examples. However, it should be understood that these examples are implemented on the premise of the technical scheme of the present application, and detailed implementation modes and specific operation processes are given, which are only for further illustrating the features and advantages of the present application, and are not a limitation of the claims of the present application, and the protection scope of the present application is not limited to the following examples.

[0016] The heavy wash oil used in the following examples of the present application is Heze Xinfengde Chemical Heavy Wash Oil, the softening point is 190 DEG C, and the 100 DEG C rotary viscosity is 14.5 mm2 / s; the No. 10 building petroleum asphalt is Qingzhou Jinyuan No. 10 building petroleum asphalt, and the softening point is 110 DEG C.

[0017] Example 1

[0018] 500g of heavy wash oil was added to the blending kettle, heated to 120 DEG C, 2.5g of 1 mol / L alkyl aluminum oxide alkane toluene solution was added, 9500g of No. 10 building petroleum asphalt was added, and then heated to 190 DEG C, under the condition of stirring speed 200r / min, stirring for 20min, and then naturally cooled to room temperature, to obtain the blending waterproof asphalt.

[0019] The blending waterproof asphalt is added to the conventional petroleum asphalt SBS modified asphalt waterproof coiled material formula according to the mass percentage of 3%, and the SBS modified asphalt waterproof coiled material is prepared.

[0020] Example 2

[0021] In the blending kettle, 1000g heavy wash oil was added, heated to 120℃, then 10g of 1 mol / L alkyl aluminum alkoxide toluene solution was added, while 9000g of No. 10 building petroleum asphalt was added, then heated to 190℃, under the condition of stirring speed 200r / min, stirred for 20min, and naturally cooled to room temperature to obtain the blended waterproof asphalt.

[0022] The above blended waterproof asphalt was added in the conventional petroleum asphalt SBS modified asphalt waterproofing membrane formula according to 5% by mass percentage, to prepare the SBS modified asphalt waterproofing membrane, compared with the conventional petroleum asphalt SBS modified asphalt waterproofing membrane without adding the blended waterproof asphalt, the low temperature flexibility temperature was reduced by 2℃, and the softening point was increased by 3.3℃.

[0023] Example 3

[0024] In the blending kettle, 800g heavy wash oil was added, heated to 120℃, then 7g of 1 mol / L alkyl aluminum alkoxide toluene solution was added, while 9200g of No. 10 building petroleum asphalt was added, then heated to 190℃, under the condition of stirring speed 200r / min, stirred for 30min, and naturally cooled to room temperature to obtain the blended waterproof asphalt.

[0025] The above blended waterproof asphalt was added in the conventional petroleum asphalt SBS modified asphalt waterproofing membrane formula according to 4% by mass percentage, to prepare the SBS modified asphalt waterproofing membrane, compared with the conventional petroleum asphalt SBS modified asphalt waterproofing membrane without adding the blended waterproof asphalt, the low temperature flexibility temperature was reduced by 1.8℃, and the softening point was increased by 4℃.

[0026] Example 4

[0027] In the blending kettle, 700g heavy wash oil was added, heated to 120℃, then 14g of 1 mol / L alkyl aluminum alkoxide toluene solution was added, while 9300g of No. 10 building petroleum asphalt was added, then heated to 190℃, under the condition of stirring speed 200r / min, stirred for 30min, and naturally cooled to room temperature to obtain the blended waterproof asphalt.

[0028] The above blended waterproof asphalt was added in the conventional petroleum asphalt SBS modified asphalt waterproofing membrane formula according to 5% by mass percentage, to prepare the SBS modified asphalt waterproofing membrane, compared with the conventional petroleum asphalt SBS modified asphalt waterproofing membrane without adding the blended waterproof asphalt, the low temperature flexibility temperature was reduced by 1℃, and the softening point was increased by 2℃.

[0029] Example 5

[0030] In the blending kettle, 600g heavy washing oil is added, heated to 120℃, then 10g of 1 mol / L alkyl aluminum alkoxide toluene solution is added, and then 9400g of No. 10 building petroleum pitch is added, and then heated to 190℃, and then stirred at 200r / min for 30min, and then naturally cooled to room temperature to obtain the blended waterproof pitch.

[0031] The blended waterproof pitch is added to the conventional petroleum pitch SBS modified asphalt waterproof roll formula at 4% by mass percentage to prepare the SBS modified asphalt waterproof roll.

[0032] From the above examples, it can be seen that the blended waterproof pitch added to the conventional petroleum pitch SBS modified asphalt waterproof roll formula can improve the high and low temperature performance of the modified asphalt waterproof roll, and the amount of alkyl aluminum alkoxide toluene solution in the blended waterproof pitch is 0.5-1% for the best effect.

[0033] The embodiments of the present application are merely examples for the purpose of clear illustration, and are not intended to limit the embodiments of the present application. Other different forms of changes or variations can be made by those of ordinary skill in the art based on the above description, and all embodiments do not need to be exhausted here, and these obvious changes or variations within the scope of the present application still fall within the protection scope of the present application.

Claims

1. A cutback waterproofing bitumen, characterized in that, The heavy oil with a flash point greater than 180 DEG C is mixed with No. 10 building petroleum pitch with a softening point greater than 100 DEG C in a set ratio to form a mixed waterproof pitch with a softening point greater than 80 DEG C; The heavy oil has an open flash point greater than 180 DEG C and a 100 DEG C kinematic viscosity greater than 13 mm / s; The mass ratio of the heavy oil to No. 10 building petroleum pitch is 5%:95%-10%:90%; The mixing process of the mixed waterproof pitch is as follows: a set amount of the heavy oil is added into a mixing kettle and heated to 120 DEG C, then a toluene solution of alkylaluminoxane with a mass percentage of 0.5-2% of the heavy oil is added, a set amount of No. 10 building petroleum pitch is added, the temperature is raised to 170-200 DEG C, and stirring is carried out at 100-200 r / min for 10-30 min, and then natural cooling is carried out to room temperature to obtain the mixed waterproof pitch.

2. The cutback waterproofing bitumen according to claim 1, wherein, The concentration of the toluene solution of alkylaluminoxane is 1 mol / L.

3. An application, characterized in that, The mixed waterproof pitch prepared by any one of the above claims 1 to 2 is added into SBS modified asphalt waterproof coiled material in a set ratio.

4. Use according to claim 3, characterized in that, The mass percentage of the mixed waterproof pitch in the SBS modified asphalt waterproof coiled material is 3%-5%.