SU652154A1 - Method of manufacturing concrete articles - Google Patents
Method of manufacturing concrete articlesInfo
- Publication number
- SU652154A1 SU652154A1 SU772511797A SU2511797A SU652154A1 SU 652154 A1 SU652154 A1 SU 652154A1 SU 772511797 A SU772511797 A SU 772511797A SU 2511797 A SU2511797 A SU 2511797A SU 652154 A1 SU652154 A1 SU 652154A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- concrete
- protective layer
- products
- manufacturing concrete
- water
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/04—Preventing evaporation of the mixing water
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Aftertreatments Of Artificial And Natural Stones (AREA)
Description
(54) СПОСОБ ИЗГОТОВЛЕНИЯ-БЕТОННЫХ ИЗДЕЛИЙ(54) METHOD FOR MANUFACTURING CONCRETE PRODUCTS
Изобретение относитс к области .строительства и может быть использовано дл повышени водоудерживающей способности поверхности твердеющих бетонных изделий на всех стади х формировани структуры бетона. Известен способ изготовлени бето ных изделий, когда на поверхность свежеотформованного издели нанос т раствор алюмината натри , как уплотн ющей добавки 1. Но алюминат натри не дает достаточно высокой водоудерживающей способности. Наиболее близким к описываемому изобретению по технической сутцности и достига1емому результату вл етс способ изготовлени бетонных изделий , включающий формование издели нанесение защитного сло на его пове хность с последующим твердением. Защитный сл.ой нанос т пропиткой водным раствором дивинилстирЬльного латекса в течение 8-10 ч при 0-30-С 2 Однако пропитка водным раствором дивинилстирольного латекса не решает вопрос водоудержани в свежеотформованном бетоне. Целью изобретени вл етс првьрие ние водоудерживающей способности на стадии формировани структуры бетона Поставленна цель достигаетс тем, что в способе изготовлени бетонных изделий, включающем формование издели , нанесение защитного сло на его поверхность с последующим твердением . На отформованное, изделие нанос т защитный слой 0,007-0,014% врдного раствора высокомолекул рного цетилового спирта. При этом на поверхности воды,покрывакицей изделие/ в пора и капил рах поверхностного сло бетона образуетс адсорбционный блой ПАВ, вл ющийс депрессором испарени . Замедл испарение вОды из поверхностного сло Жетона, ПАВ преп тствует пленочному движению жидкости к поверхности испарени за счет гидрофобизации стенок капил ров и пор, повыша тем самым и водоудерживающую способность бетона. П р и м е р. Формуют бетонные образцы и провод т обработку свежеотформованных -бетонных образцов 0,007%-ным водньлм раствором цетилового спирта (С Hgg ОН) . Кроме того, берут контрольные образцы, поверхность которых не подвергалась обравотке цетилойгым спиртом, и помещают ipTfe же услови ,чтр й- эбработанныеThe invention relates to the field of construction and can be used to increase the water holding capacity of the surface of hardening concrete products at all stages of the formation of the structure of concrete. A known method of manufacturing concrete products is when a solution of sodium aluminate is applied to the surface of a newly formed product as a sealing additive 1. But sodium aluminate does not provide a sufficiently high water retention capacity. The closest to the described invention in terms of technical value and the achieved result is a method of manufacturing concrete products, including the molding of a product, the application of a protective layer on its surface, followed by hardening. The protective layer is applied by impregnation with an aqueous solution of divinyl styrene latex for 8-10 hours at 0-30-C 2 However, impregnation with an aqueous solution of divinyl styrene latex does not solve the issue of water retention in freshly formed concrete. The aim of the invention is the development of water retention capacity at the stage of forming the structure of concrete. The goal is achieved by the fact that in the method of manufacturing concrete products, including the molding of the product, the application of a protective layer on its surface, followed by hardening. A protective layer of 0.007-0.0144% vrdn solution of high molecular weight cetyl alcohol is applied to the molded product. In this case, an adsorption surfactant layer is formed on the surface of the water, by coating the product / in the pore and capillaries of the surface layer of concrete, which is an evaporation depressant. Slowing down the evaporation of water from the surface layer of the token, the surfactant impedes the film movement of the liquid to the evaporation surface due to the hydrophobization of the capillary walls and pores, thereby increasing the water-holding capacity of the concrete. PRI me R. Concrete samples are molded and freshly formed concrete samples are processed with a 0.007% water solution of cetyl alcohol (C Hgg OH). In addition, control samples are taken, the surface of which has not been subjected to treatment with cetyl alcohol, and ipTfe is placed on the same condition that
- . , -. ,
Испарение при неподвижном воздухеStill air evaporation
Те жеThe same
Испарение при обдувке поверхности потоком Evaporation by flushing the surface
3,0-5,0 18-22 воздуха3.0-5.0 18-22 air
Обработанные водным раствором .цетилового спирта свежеотформованнйе бетонные издели при комнатной темПерйтуре воды и скорости двйШййй воздуха над поверхностью испарени до 5 м/сек. имеют скорость испарени воды со своей поверхности в 4-5 раз меньшую, чем не обработанные издели . При необходимости же адсорбционный слой жирного спирта может быть легко удален с поверхности издели .Treated with an aqueous solution of acetyl alcohol, freshly formed concrete products at room temperature and water velocity and air velocity over the evaporation surface up to 5 m / s. have the rate of evaporation of water from its surface is 4-5 times lower than unprocessed products. If necessary, the adsorption layer of fatty alcohol can be easily removed from the surface of the product.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772511797A SU652154A1 (en) | 1977-08-02 | 1977-08-02 | Method of manufacturing concrete articles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772511797A SU652154A1 (en) | 1977-08-02 | 1977-08-02 | Method of manufacturing concrete articles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU652154A1 true SU652154A1 (en) | 1979-03-15 |
Family
ID=20719725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772511797A SU652154A1 (en) | 1977-08-02 | 1977-08-02 | Method of manufacturing concrete articles |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU652154A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6277190B1 (en) | 1997-04-29 | 2001-08-21 | Henkel Kommanditgesellschaft Auf Aktien | Use of alcohols as additives for plaster and/or mortar |
| US7998532B2 (en) * | 2006-05-23 | 2011-08-16 | Wen-Chen Jau | Method for self-curing concrete |
-
1977
- 1977-08-02 SU SU772511797A patent/SU652154A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6277190B1 (en) | 1997-04-29 | 2001-08-21 | Henkel Kommanditgesellschaft Auf Aktien | Use of alcohols as additives for plaster and/or mortar |
| US7998532B2 (en) * | 2006-05-23 | 2011-08-16 | Wen-Chen Jau | Method for self-curing concrete |
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