SU1597374A1

SU1597374A1 - Method of producing bitumen emulsion mastic

Info

Publication number: SU1597374A1
Application number: SU884376026A
Authority: SU
Inventors: Аркадий Дмитриевич Маслаков; Анатолий Петрович Вилисов
Original assignee: Проектный Институт "Авторемпромпроект"
Priority date: 1988-02-03
Filing date: 1988-02-03
Publication date: 1990-10-07

Abstract

Изобретение относитс к получению мастик, используемых дл гидроизол ции строительных конструкций и устройства безрулонных кровель крыш зданий. Изобретение позвол ет повысить однородность мастики, снизить ее расслаиваемость, водопоглощение и повысить ее морозостойкость и трещиностойкость. Способ получени битумной эмульсионной мастики заключаетс в смешении твердого эмульгатора - мелкомолотой негашеной извести, сбеста и воды в количестве 10% воды от общей массы воды с последующим порционным введением в полученную суспензию предварительно разогретого до 110-170°С битума и оставшегос дополнительного количества воды при непрерывном перемешивании в течение 10-25 мин. При этом компоненты дл приготовлени мастики используют в следующем соотношении, мас.%: битум 47-50, асбест 12-14, известь негашена мелкомолота 4-6, вода остальное. 4 табл.The invention relates to the production of mastics used for waterproofing building structures and the installation of roofless roofs of buildings. The invention makes it possible to increase the homogeneity of the mastic, reduce its stratification, water absorption and increase its frost resistance and crack resistance. The method of obtaining bitumen emulsion mastic consists in mixing a solid emulsifier — fine ground quicklime, sbab and water in an amount of 10% water based on the total mass of water, followed by portion introduction into the resulting suspension of bitumen preheated to 110-170 ° C and continuous stirring for 10-25 minutes. The components for the preparation of mastic are used in the following ratio, wt.%: Bitumen 47-50, asbestos 12-14, lime quicklime 4-6, water the rest. 4 tab.

Description

10 мин поочередно (порционно за 4 раза ) ввод т предварительно разогретый до ПО С битум (марки.БНД 60/90) (47 мас.%) и оставшеес количество воды (33,3 мас.%).10 minutes alternately (portionwise 4 times), bitumen (grade BND 60/90) (47 wt.%) And the remaining amount of water (33.3 wt.%), Preheated to PO C, are preheated.

Пример 2 о Битумную мастику готов т как в примере 1, но при этом дл полз чени шихты (суспензии) эмульгатора берут 5 мас.% извести негаше- ной, 13 мас.% асбеста и 3,35 мас.% воды (10 мас.% от общего количества воды), при этом битум марки БНД 40/60, предварительно разогретый до 140 С, ввод т в количестве 48,5 мас„%, водуExample 2: Bitumen mastic is prepared as in Example 1, but for creep of the charge (suspension) of the emulsifier, 5% by weight of quicklime, 13% by weight of asbestos and 3.35% by weight of water (10% by weight) are taken. % of the total amount of water), while the BND 40/60 grade bitumen, preheated to 140 ° C, is introduced in an amount of 48.5% by weight, water

в количестве 30,15 масо% порционно за 5 раз, а перемешивание осуществл ют в течение 20 мин.in the amount of 30.15% by weight in portions for 5 times, and stirring is carried out for 20 minutes.

П р и м е р 3. Битумную мастикуPRI me R 3. Bituminous mastic

3 представлены рецептуры3 presents recipes

4four

В таблс мастикоIn the table Mastyko

В табл. 4 представлены сравнительные данные по другим свойствам масти-; ки в сравнении с известным и контрольными примерами, рецептуры которых представлены в табл„ 3.In tab. 4 presents comparative data on other masti- properties; ki in comparison with the known and control examples, the formulations of which are presented in Table 3.

Мастики готов т при ,Mastics are prepared when

Claims

Invention Formula

The method of obtaining bitumen emulsion-mastic by mixing a solid emulsifier, asbestos and water with the subsequent introduction of bitumen preheated to 110-170 s in the resulting suspension and additional

prepared as in example 1, but for a half-full amount of water, while the emulsifier mixture is unbroken (suspensions based on quicklime, asbestos and water), 6% by weight of quicklime, 14% by weight asbestos, 3.0 are used. mas% (10 mas% of total water demand); BND 60/90 grade bitumen is preheated before and introduced in an amount of 50 wt.% together with the remaining water (27 wt.%) in portions for 6 times with continuous stirring for 25 minutes.

In tab. 1 for clarity, the ratios of the components used to make mastic about

In tab. 2 presents data on frost resistance and crack resistance mastic in examples 1-3.

25

thirty

35

Fluid mixing, characterized in that, in order to increase the homogeneity of the mastic, reduce its stratification, water absorption and increase its frost resistance and crack resistance, finely ground quicklime is used as a solid emulsion, the suspension is obtained in the presence of 10% water based on the total mass of water , and mixing of bitumen is carried out for 10-25 minutes, and the components are used in the following ratios, in wt.%:

Bitum47-50

Asbestos12-14

Quicklime lime

fine hammer 4-6

WaterEverything

five

0

five

Fluid mixing, characterized in that, in order to increase the homogeneity of the mastic, reduce its stratification, water absorption and to increase its frost resistance and crack resistance, finely ground quicklime is used as a solid emulsifier, the suspension is carried out in the presence of 10% water based on the total mass of water, and the mixing of bitumen is carried out for 10-25 minutes, and the components are used in the following ratios, in wt.%:

Bitum47-50

Asbestos12-14

Quicklime lime

fine hammer 4-6

WaterEverything

Table 1

Frost resistance, cycles not less than Crack resistance at temperature, С

Components

Bitumen

Quicklime lime

50

Heterogeneity,% Delamination,% Frost-resistance of cycles Crack resistance (brittleness), C Water absorption,% Heat resistance, C Crack resistance (bend around a rod with a diameter of 20 mm without cracks), C

1597374

table 2

80

75

50

-21

-20

-ten

Table 3

The content of components, wt,%, according to examples

zizzizii:

50

50 5

Table 4

18

4.5 15 50

10 7 85

4.1 15 60

-15 7 90

3.5 3.5 13 13 75 68

-20-17

3.5 3.5 95 85

15

12

13