SU653238A1

SU653238A1 - Method of making concrete-polymer articles

Info

Publication number: SU653238A1
Application number: SU752131492A
Authority: SU
Inventors: Юрий Михайлович Баженов; Лев Алексеевич Алимов; Виктор Валерианович Воронин
Original assignee: Bazhenov Yurij M; Alimov Lev A; Voronin Viktor V
Priority date: 1975-05-07
Filing date: 1975-05-07
Publication date: 1979-03-25

Description

(54) СПОСОБ ИЗГОТСШЛЕНИЯ БЕТОНОПОЛИМЕРНЫХ ИЗДЕЛИЙ(54) METHOD OF MAKING CONCRETE POLYMER PRODUCTS

Изобретение относитс к способам изготовлени бетонных изделий, модифицированных полимерами, и может найти применение в промышленности строительш 1х материалов.The invention relates to methods for manufacturing concrete products modified with polymers, and may find application in the construction industry of 1x materials.

Известны способы изготовлени бетонополимерных изделий, включающую сушку с вакуумирсюанием бетонных элементов , пропитку их жидкими мономерами н термокаталйтнческу лолимеризацию ij.Methods are known for making concrete polymer products, including drying and vacuuming concrete elements, impregnating them with liquid monomers and thermocatalyzing polymerization ij.

Прн попитке изделий таким способом насыщение нзделн мономером происходит главшлм образом за счет капилл рной конденсаини. TJS. давлени внутри нздели и снаружи выравниваютс . Это не позвол ет полностью насыщать даже доступные дл используемого пропиточного материалы поры.When the product is fed in this way, the saturation of a single monomer occurs mainly because of the capillary condensin. Tjs The pressures inside and outside are leveled. This prevents even the pores available for the impregnating materials from being completely saturated.

Ближайшим к изобретению по технической сущности и достигаемому результату вл етс способ изготовлени бетонополимерных изделий, включающий пропитку бетонного элемента путем нагнетани эпоксидной смолы под давлением 3-5 sntThe closest to the invention to the technical essence and the achieved result is a method for the manufacture of concrete-polymer products, including the impregnation of a concrete element by injection of epoxy resin under pressure of 3-5 snt

с одной его стороны н одвовременноУ вакуумировании при разрежении 5О150 мм рт. ст. другой стороны 2.on one side of it, at one time, vacuuming under a vacuum of 5 ° 150 mm Hg. Art. other side 2.

Однако этот способ также не обеспечивает полного 8дполвени пор бетона пропиточным Материалом.However, this method also does not provide a complete 8polite pores of concrete impregnating material.

Целью изобретени вл етс повышение физико-механнческих свойств изделий за счет увеличени степени заполнени пор бетона пр(Я1нточнЫм материалом .The aim of the invention is to increase the physicomechanical properties of the products by increasing the degree of filling of the pores of concrete with a (fine material.

Эта цель достигаетс тем, что в способе изгот лени бетонополимёрных из делий, включающем пропитку бетонных изделий при избыточном давлении с одной стороны н вшсуумировании другой . стороны, из/юли предварителы5О сушат, затем вакуумируют при глубине вакуума 750-759 мм рт.ст., а пропитку веДУТ при поддержании той же глубины вакуума с одной стороны издели .This goal is achieved by the fact that in the method of making polymer-concrete products, which include the impregnation of concrete products at an overpressure on one side and the addition of another. The sides, from / to the premix, are dried, then they are evacuated at a vacuum depth of 750-759 mm Hg, and the impregnation will be led while maintaining the same vacuum depth on one side of the product.

Claims

The method is carried out following o6 diss. The daiBepaetiimee concrete product is dried at 12 ° –140 ° C, immediately prior to impregnation (U) volumetric vacuuming from a depth of vacuum 750759 mm Hg to maximize the removal of moisture and air from the pores of the concrete. Then the monomer is fed under pressure (preferably 1-1.5 atm) from one side only from a distance and continue to be evacuated at the same depth of vacuum from the other side. In this case, the impregnating material is sucked through the product until the pores of the concrete are evenly filled. PRI me R. Concrete samples of 4x4x16 size are dried at 105 ° C, vacuumized at a vacuum depth of 750 mm Hg, and then impregnated with methyl methacrylate by feeding it with a pressure of 1.3 aty from one side of the sample and continuing to evacuate from the other side. . - - - The amount of absorbed m H5Omer is 9-12% by mass (in the known method 5-6%), strength 18O200 MPa. The invention method of making concrete polymer products, including the impregnation of concrete products with an overpressure on one side of the product and vacuuming the other hand, characterized in that, in order to improve the physical and mechanical properties of products by increasing the degree of filling of concrete pores with impregnating material, the product is pre-dried, then vacuum is applied at a vacuum depth of 7 50759 mm Hg, and impregnation is carried out while maintaining the same vacuum depth on one side of the product. Sources of information taken into account during the examination 1. USSR author's certificate Li 527407, cl. From 04 To 41/28, 1974.

2. USSR author's certificate number 564161, cl. B 28 B 11 / GS, 1974,