CS224486B1 - Filling mixture for expansion joints filling in concrete building structures - Google Patents
Filling mixture for expansion joints filling in concrete building structures Download PDFInfo
- Publication number
- CS224486B1 CS224486B1 CS508481A CS508481A CS224486B1 CS 224486 B1 CS224486 B1 CS 224486B1 CS 508481 A CS508481 A CS 508481A CS 508481 A CS508481 A CS 508481A CS 224486 B1 CS224486 B1 CS 224486B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- filling
- concrete building
- building structures
- expansion joints
- mixture
- Prior art date
Links
- 239000000203 mixture Substances 0.000 title claims description 17
- -1 polypropylene Polymers 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 235000012054 meals Nutrition 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000011440 grout Substances 0.000 description 9
- 239000010426 asphalt Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
Zálivková směs pro zaplnění dilatačních spař cementobetonových stavebních konstrukcí je určena pro pevné a pružné zaplnění spař, zejména mezi velkoplošnými panely tramvajového tělesa nebo vozovky a podobně.The sealant for filling expansion joints of cement-concrete building structures is designed for firm and flexible filling of joints, especially between large-area panels of tramway bodies or pavements and the like.
Dosud vyráběné zálivkové směsi používají jako hlavní vaznou součást přírodní asfaltové živice. Ty věak mají velmi plastický tok a vstřebávají se pronikáním do podloží. Při pojíždění komunikaci se pak, zvláStě při promáčení podloží, dilatační spáry vytloukají, dochází k vynáěení drobnějších součástí podloží na povrch a vzniklé dutiny pod panely vedou k destrukci panelů a k nežádoucímu zvlnění nivelety komunikace. Stav se každým následným pojížděním zhoršuje, takže je nutno přistoupit k neodkladné generální opravě komunikace, při níž dochází k dlouhodobé výluce dopravy. Zálivkové směsi podléhají také příliš klimatickým vlivům a vlivům počasí. Při značném poklesu teploty křehnou, vydrolují se 8 ztrácejí zvukově izolační vlastnosti. Při slunném počasí s vysokými teplotami naopak měknou, deformují se vlivem rázů vznikajících při pojíždění a jsou vytlačovány ze spař, čímž je naruěován plynulý povrch komunikace. V zahraničí se proto začaly vyrábět zálivkové směsi na bázi plastických hmot. Tyto směsi větěinou používají syntetické pryskyřice nebo dvousložková pojivá, někdy opět s přídavkem přírodního asfaltu, např. ve formě emulze, která umožňuje zálivku sper za studená. Tyto směsi mají zpravidla složitou recepturu a složitý způsob výroby a jsou vyráběny ze složek značně nákladných.The grout mixtures produced so far use natural asphalt bitumen as the main binding component. However, they have a very plastic flow and are absorbed by penetration into the subsoil. When moving the road, dilatation joints are broken out, especially when the subsoil is soaked, smaller subsoil parts are brought to the surface and the resulting cavities under the panels lead to destruction of the panels and undesirable undulation of the road leveling. The condition deteriorates with every subsequent taxiing, so it is necessary to proceed with an urgent overhaul of the road, which leads to a long-term exclusion of traffic. Watering mixtures are also subject to too climatic and weather conditions. In case of a significant drop in temperature they become brittle, they break up 8 they lose their sound insulating properties. On the contrary, in sunny weather with high temperatures, they soften, deform due to shocks occurring during taxiing and are pushed out of the joints, thereby disturbing the smooth surface of the road. Therefore, grouting mixtures based on plastics began to be produced abroad. These mixtures mostly use synthetic resins or two-component binders, sometimes again with the addition of natural asphalt, for example in the form of an emulsion that allows cold sperm dressing. As a rule, these compositions have a complicated recipe and a complicated manufacturing process and are made of costly ingredients.
Uvedené nedostatky odstraňuje zálivková směs podle vynálezu, jejíž podstata spočívá v tom, že obsahuje 50 až 70 % hmot. amorfního polypropylenu, 5 až 15 % hmot, kamenné moučky a plnivo, jímž je drcené kamenivo e/nebo granulovaná pryž v množství 10 až 30 % hmot, o zrnitosti do 2 mm a 5 až 15 % hmot. o zrnitosti od 2 do 4 mm.The above-mentioned drawbacks are overcome by the grout composition according to the invention, which comprises 50 to 70 wt. amorphous polypropylene, 5 to 15 wt.%, stone meal and filler, which is crushed aggregate and / or granulated rubber in an amount of 10 to 30 wt.%, with a grain size of up to 2 mm and 5 to 15 wt. with a grain size of 2 to 4 mm.
224 486224 486
Hlavní výhoda zálivkové 3iuěsi podle vynálezu spočívá v tom, že amorfní polypropylen je odolnější proti vlivům povštrnosti, vlivům chemických látek a posypů. Nekřehne, nevydroluje se a není vytlačován ze sper ani při extrémních teplotách, takže nedochází k narušování plynulosti povrchu komunikace. Vlivem své pružnosti a ostatních vlastností je schopen dokonale zaplnit spáry, rovnomšrnš přenášet tlaky, tlumit vibrace a tím i vznikající hluk. Prodlužuje životnost velkoplošných panelů a tím výrazně snižuje náklady na údržbu komunikace. Nezanedbatelnou výhodou je, že zálivková směs neobsahuje přírodní asfalt, který je dnes strategickou surovinou dováženou za devizy, nýbrž obsahuje amorfní polypropylen, tedy levnou snadno dostupnou surovinu z domácích zdrojů.The main advantage of the grout mixture according to the invention is that the amorphous polypropylene is more resistant to the effects of aggressiveness, chemical influences and scattering. It does not become brittle, does not crumble and is not expelled from spores even at extreme temperatures, so that the smoothness of the road surface is not disturbed. Due to its elasticity and other properties, it is able to perfectly fill the joints, evenly transfer the pressures, damp vibrations and thus the resulting noise. Extends the life of large-area panels, significantly reducing road maintenance costs. A noticeable advantage is that the grout mixture does not contain natural asphalt, which is nowadays a strategic raw material imported for foreign exchange, but contains amorphous polypropylene, a cheap, readily available raw material from domestic sources.
PřikladlHe did
K zaplnění spař mezi velkoplošnými silničními panely bylo použito zálivková směsi podle vynálezu. Směs 60 % hmot. amorfního polypropylenu, 10 % hmot. mletého vápence, % hmot. drceného kameniva o zrnitosti do 2 mm a 10 % hmot. drceného kameniva o zrnitosti 2 až 4 mm byla rozehřátá ne teplotu 180 °C a zalita do dilatačních spár. Zálivková směs po zatuhnutí působila velmi příznivě, nedocházelo k vytloukání podloží a narušování panelů, takže k rekonstrukci vozovky mohlo být přikročeno až po trojnásobná době oproti obdobným vozovkám, jejichž spáry byly zaplněny směsí na bázi přírodního asfaltu.The filler mixture according to the invention was used to fill the joints between the large-area road panels. 60% wt. % amorphous polypropylene, 10 wt. ground limestone,% wt. Crushed aggregates with grain size up to 2 mm and 10% by weight Crushed aggregate with a grain size of 2 to 4 mm was heated to a temperature of 180 ° C and poured into expansion joints. The grout had a very good effect after solidification, there was no shelling of the subsoil and no disturbance of the panels, so the road could be reconstructed up to three times compared to similar pavements whose joints were filled with a mixture of natural asphalt.
Příklad 2Example 2
Spáry mezi velkoplošnými panely tramvajového tělesa byly zaplněny zállvkovou směsí podle vynálezu, obsahující 55 % hmot. amorfního polypropylenu, ,5 % hmot. mletého vápence, 15 % hmot. granulované pryže o zrnitosti do 2 mm a 15 % hmot. granulované pryže o zrnitosti od 2 do 4 mm. Směs byla rozehřátá na teplotu 180 °C a zalita do spár. Při měření hlučnosti za provozu, tj. při pojíždění tramvají, byl naměřen téměř dvojnásobný tlumivý účinek zálivková směsi podle vynálezu oproti hodnotám naměřeným ne obdobném úseku tramvajového tělesa, jehož spáry byly zaplněny zállvkovou směsí na bázi přírodního asfaltu.The joints between the large-area panels of the tramway body were filled with the grout mixture according to the invention, containing 55% by weight. % amorphous polypropylene,. ground limestone, 15 wt. granulated rubbers with grain size up to 2 mm and 15 wt. granulated rubbers with a grain size of 2 to 4 mm. The mixture was heated to 180 ° C and poured into the joints. In the measurement of noise during operation, i.e. when moving trams, almost the damping effect of the grout mixture according to the invention was measured compared to the values measured on a similar section of the tram body whose joints were filled with the grout mixture based on natural asphalt.
Zálivková směs podle vynálezu je vhodná pro zaplňování věech druhů spár cementobetonových stavebních konstrukcí.The grout composition according to the invention is suitable for filling all kinds of joints of cement-concrete building structures.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS508481A CS224486B1 (en) | 1981-07-01 | 1981-07-01 | Filling mixture for expansion joints filling in concrete building structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS508481A CS224486B1 (en) | 1981-07-01 | 1981-07-01 | Filling mixture for expansion joints filling in concrete building structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS224486B1 true CS224486B1 (en) | 1984-01-16 |
Family
ID=5395010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS508481A CS224486B1 (en) | 1981-07-01 | 1981-07-01 | Filling mixture for expansion joints filling in concrete building structures |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS224486B1 (en) |
-
1981
- 1981-07-01 CS CS508481A patent/CS224486B1/en unknown
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