CS199427B1 - Mortar having increased water-tightness - Google Patents
Mortar having increased water-tightness Download PDFInfo
- Publication number
- CS199427B1 CS199427B1 CS509778A CS509778A CS199427B1 CS 199427 B1 CS199427 B1 CS 199427B1 CS 509778 A CS509778 A CS 509778A CS 509778 A CS509778 A CS 509778A CS 199427 B1 CS199427 B1 CS 199427B1
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- CS
- Czechoslovakia
- Prior art keywords
- parts
- mortar
- cement
- concrete
- water
- Prior art date
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- 239000004570 mortar (masonry) Substances 0.000 title claims description 28
- 239000004567 concrete Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000004568 cement Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- 239000000440 bentonite Substances 0.000 claims description 10
- 229910000278 bentonite Inorganic materials 0.000 claims description 10
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 10
- 239000006185 dispersion Substances 0.000 claims description 9
- 239000011398 Portland cement Substances 0.000 claims description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 239000004815 dispersion polymer Substances 0.000 claims description 4
- 239000011256 inorganic filler Substances 0.000 claims description 4
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 4
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- IVJISJACKSSFGE-UHFFFAOYSA-N formaldehyde;1,3,5-triazine-2,4,6-triamine Chemical class O=C.NC1=NC(N)=NC(N)=N1 IVJISJACKSSFGE-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000006004 Quartz sand Substances 0.000 claims description 2
- 150000004645 aluminates Chemical class 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 239000000839 emulsion Substances 0.000 claims description 2
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 claims description 2
- 238000000227 grinding Methods 0.000 claims description 2
- 239000011440 grout Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000003643 water by type Substances 0.000 claims description 2
- 238000004078 waterproofing Methods 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000005067 remediation Methods 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 238000004381 surface treatment Methods 0.000 claims 1
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- VMRHCZNACCBXEJ-UHFFFAOYSA-N butyl 2-methylprop-2-enoate;butyl prop-2-enoate Chemical compound CCCCOC(=O)C=C.CCCCOC(=O)C(C)=C VMRHCZNACCBXEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- PHHWLDOIMGFHOZ-UHFFFAOYSA-L disodium;dinaphthalen-1-ylmethanedisulfonate Chemical compound [Na+].[Na+].C1=CC=C2C(C(C=3C4=CC=CC=C4C=CC=3)(S(=O)(=O)[O-])S([O-])(=O)=O)=CC=CC2=C1 PHHWLDOIMGFHOZ-UHFFFAOYSA-L 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- -1 vinyl acetate ethylene diesters Chemical class 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Description
Tento vynález ea týká maltoviny eo zvýšenou vodotesnostíóu. V stavebnej praxi v případe, že je potřebná dodatečná vodotěsná úprava betonových stien stavebných objektov, sa používajú nátěrové alebo nástrekové hmoty, v ktorýoh je ako epojivo portlandský cement. Ak obsahujú len cement a dispergátor a připadne piesok a hydrofobizačný prostriedok, pri tuhnutí a tvrdnutí sú velmi citlivé na nedostatok vlhkosti. Ak obsahujú běžný cement neupravený mletím, nanesená vrstva nie je vodotěsná.The present invention e relates to a mortar having an increased watertightness. In construction practice, if additional waterproof treatment of the concrete walls of construction objects is required, paints or spray materials are used in which Portland cement is used as the epoxy. If they contain only cement and a dispersant, and sand and a hydrophobizing agent, respectively, they are very sensitive to lack of moisture when solidified and hardened. If they contain conventional cement untreated by grinding, the applied layer is not waterproof.
Uvedené nedostatky rieši maltovína so zvýšenou vodotesnoeťou podTa vyná- . lezu. Jej podstata spočívá v tom, že obsahuje, vztiahnuté na 1Ó0 dielov hmotnoetných alebo troakoportlandského cementu, 1 až 15 dielov hmotnostných mletého bentonitu s obsahom častíc vfičších ako 45 jam najviac 20 % 0,1 až 2 diely kondenzačného produktu -formaldehydu a aromatickej sulfokyseliny a/alebo eulfonovanej melamínformaldehydovej živice, a 2 až 30 dielov hmotnostných disperzie polymeru, s výhodou na báze kyseliny akrylovej a jej derivátov, alebo ich najnenej binárnych kopolymérov so styrénom, alebo dieperzie vinylacetátetylénovej. V případe, že je potřebné maltovinu podTa vynálezu nanášať natieranim, je účelné doplnit? jej zloženie 0,01 až 2 dielmi hmotnostných odpeňovača, s výhodou na báze silikonovéj emulzie. Ak jě potřebné naniesť hrubšiu vrstvu maltoviny, je účelné doplnit? jej zloženie, vztiahnuté na 100 dielov hmotnostných cementu^ 1 až 450 dielmi anorganického plniva, ako je křemičitý piesok. V případe potřeby doaiahnutia maltoviny s obmedzeným zmrašťováním, alebo s rozpí199427 navými vlastnosťami je účelné doplniť jej zloženie, počítané na 100 dielov portlandského alebo troskoportlandekého cementu, 1 až 15 dielmi hlinitanového cementu. Ako disperziu polyméru je vhodné použiť také disperzie, ktoré odolávájú pdsobeniu alkálií, například butylmetakrylát - butylakrylátová disperzia alebo styrénakrylétová disperzie, alebo vinylacetát-etylénová disperzia.The above-mentioned deficiencies are solved by a mortar with increased waterproofing according to the invention. I climb. It is based on 1 to 15 parts by weight of ground bentonite, with a particle content of more than 45 µm, of at most 20% 0.1 to 2 parts of the formaldehyde and aromatic sulfoacid condensation product, based on 10 parts by weight of cement or troakoportland cement. or a sulfonated melamine-formaldehyde resin, and from 2 to 30 parts by weight of a polymer dispersion, preferably based on acrylic acid and derivatives thereof, or their binary styrene binary copolymers, or vinyl acetate ethylene diesters. If it is necessary to apply the mortar according to the invention by spreading, is it appropriate to add? a composition of 0.01 to 2 parts by weight of an antifoam, preferably based on a silicone emulsion. If it is necessary to apply a thicker layer of mortar, is it appropriate to add? a composition thereof, based on 100 parts by weight of the cement, 1 to 450 parts by weight of an inorganic filler, such as quartz sand. If it is necessary to reach the mortar with limited shrinkage or with other properties, it is expedient to supplement its composition, calculated on 100 parts of Portland or troscortortland cement, with 1 to 15 parts of aluminate cement. Suitable dispersions of the polymer are those which are resistant to alkali, for example butyl methacrylate-butyl acrylate dispersion or styrene acrylate dispersion, or vinyl acetate-ethylene dispersion.
Příklad použitia δ. 1Application example δ. 1
Zmes vzniklá zmieSaním:Mixture formed by mixing:
- 100 dielov troskoportlandekého cementu triedy SPC 325- 100 parts of SPC 325 grade troscortland cement
- 7,5 dielu přísady podTa AO 199426 pozostávajúcej zo 7 dielov bentonitu obsahujúceho najviac 20 % častíc vBčších ako 45 a 0,5 dielu dinaftylmetándisulfonanu sodného- 7.5 parts of additive according to AO 199426 consisting of 7 parts of bentonite containing not more than 20% of particles in excess of 45 and 0.5 parts of sodium dinaphthylmethane disulfonate
- 0,25 dielu odpeňovača na báze si1ikonovéj disperzie / ·- 0.25 parts antifoam based on silicon dispersion / ·
- 9 dielov butylmetakrylát - butylakrylátovej disperzie- 9 parts butyl methacrylate-butyl acrylate dispersion
- 27 dielov vody bola nanesená ako nátěr vo dvoch vrstvách s celkovou hrúbkou 1 mm na povrch betónových skúSobných vzoriek o rozmeroch 20 x 20 x 12 cm. Betonové skúšobné vzorky boli vyrobené z betonu so stupftom vodotěsnosti V 12 podTa ČSN 73 2025, pričom středový válec o 0 5 cm mali vyplněný betonom prepúSťajúcim vodu už pri tlaku nižšom ako 0,1 MPa.27 parts of water were applied in two coats with a total thickness of 1 mm to the surface of 20 x 20 x 12 cm concrete test pieces. Concrete test specimens were made of concrete with a degree of water-tightness V 12 according to ČSN 73 2025, while the central cylinder of 0 5 cm was filled with concrete permeable to water at a pressure lower than 0.1 MPa.
Po 7 dňoch tvrdnutia nátěru maltovinou podTa vynálezu boli skúěobné vzorky zatažené tlakom vody. Tlak vody pdsobil cez beton s nízkou vodotesnosťou v stredovomválci betónovej akúSobnej vzorky na nátěr maltoviny podTa vynálezu. Voda nepretiekla ani pri tlaku 0,2 MPa.After 7 days of hardening of the mortar coating according to the invention, the test specimens were covered with water pressure. The water pressure applied over the low waterproof concrete in the middle roll of the concrete concrete sample to paint the mortar according to the invention. The water did not flow even at a pressure of 0.2 MPa.
Příklad použitia č. 2Application no. 2
Zmes vzniklá zmieSanímThe mixture is formed by mixing
- 100 dielov slranovzdorného portlandského cementu- 100 parts of sintered Portland cement
- 7,5 dielu přísady podTa AO 199426 pozostávajúeej zo 7dielov bentonitu s obsahom najviac 20 % častíc vBčších ako 45 fia. a 0,5 dielu sulfonovanéj melamínformaldehydovej živice7.5 parts of the additive according to AO 199426 consisting of 7 parts bentonite containing not more than 20% particles in excess of 45 µm. and 0.5 parts of sulfonated melamine formaldehyde resin
- 100 dielov jemného křemičitého pieaku- 100 parts fine siliceous silica
- 9 dielov styrénakrylátovej disperzie- 9 parts styrene acrylate dispersion
- 27 dielov vody bola nanesená v celkovej hrúbke 2 mm na povrch rovnákých betónových skúSobných vzoriek ako boli popísané v příklade č. 1. Po 7 dňoch tvrdnutia boli podrobené skúške vodotěsnosti.27 parts of water were applied in a total thickness of 2 mm to the surface of the equal concrete test specimens as described in example no. 1. After 7 days of curing, they were subjected to a watertightness test.
- 3 - 1994273 - 199427
Pri zatažení tlakom vody tak, aby pdsobil cez beton a nízkou vodotesnosťoú něpretiekla voda ani pri tlaku 0,4 MPa.When pressurized with water pressure so that it acts through the concrete and low water-tightness, water does not flow even at a pressure of 0.4 MPa.
Maltoviňa podl’a vynálezu sa mdže připravit aj vo formě suchej prefabrikovanej zmesi, ak aa dopředu zmieSa cement, bentonit, diapeřgátor v práškové j formě, diaperzia vo formě suchého, redispergovatelného prášku a připadne suché anorganické plnivo á odpenovač vo formě préškovej. K použitiu sa připraví přidáním potřebného množstva zámesovej vody.The mortar according to the invention can also be prepared in the form of a dry prefabricated mixture if and before mixing the cement, bentonite, powdered diaper, dry dispersible redispersible powder and optionally dry inorganic filler and powdered defoamer. It is prepared for use by adding the necessary amount of mixing water.
fF
Na zhotoveňie maltoviny podle vynálezu postačuje jemné mletie len jej časti, pozoetávajúcej z bentonitu a dispergátora.For grouting the mortar according to the invention, it is sufficient to finely grind only a part of the mortar consisting of bentonite and a dispersant.
Maltoviňa podlá vynálezu sa mdže s výhodou nanóšať na vlhké povrchy silikátových hmdt, například betonu alebo tam, kde nie je možné Zabezpečit dostatečné ošetrovanie nanesenej vrstvy vlhkosťou respektive vodou, aby sa zabránilo jej vysehnutiu až do jej zatvrdnutia. Pre miesta atyku so síranovými agresívnymi vodami je zvlášť vhodné použitie maltoviny podlá vynélezu zhotovenej zo síranovzdorného portlandského cementu.The mortar according to the invention can advantageously be applied to wet surfaces of silicate mortars, for example concrete or where it is not possible to ensure sufficient treatment of the applied layer with moisture or water, in order to prevent it from drying out until its hardening. For sites of contact with sulphate aggressive waters, it is particularly suitable to use a mortar according to the invention made of sulphate-resistant Portland cement.
S výhodou sa mdže nanášet aj metodou suchého torkretu tak, že k dopředu zhotovenej suchej prefabrikovanej zmesi cementu, bentonitu, dispergátora a křemičitého plesku sa v striekacej pištoli přidává zmes vody a disperzie polymeru.Preferably, it can also be applied by the dry gun method by adding a mixture of water and a polymer dispersion to the preformed dry prefabricated mixture of cement, bentonite, dispersant and silica flakes.
Ak je potřebné nanášet hrubšie vrstvy, potom je vhodné použitie hrubšieho piesku, například pre vrstvy do 1,5 až 2 cm piesok s maximálnym zrnom do 3 mm a podobné. Použitie mechanického nanášania maltoviny podlá vynálezu je zvlášť vhodné pre sanáciu koróziou poškodených povrchov betonových konštrukcií* Maltoviňa sa mdže mechanicky nanášat aj ako čerstvá s vodou rozrobená zmes, například lievikom pištolami pre nanášanie povrchových úprav, alebo sa mdže na malýoh plochách nanášat aj ručně ako vysprávková vrstva.If thicker layers need to be applied, it is suitable to use thicker sand, for example for layers up to 1.5 to 2 cm sand with a maximum grain size of up to 3 mm and the like. The use of the mechanical mortar application according to the invention is particularly suitable for the repair of corrosion-damaged surfaces of concrete structures. The mortar can also be applied mechanically as a freshly water-mixed mixture, for example by a spray gun, or by hand as a repair layer. .
Maltoviňa podlá vynálezu sa mdže váak použiť na rozmanité ďalšie účely, ako je zálievková malta na zmonolitfiovanie stykov betonových prefabrikátov, ako vyrovnávacia vrstva na betonové podlahy a podobné.The mortar according to the invention can also be used for a variety of other purposes, such as grout for the monolithic casting of concrete prefabricated joints, as a leveling layer for concrete floors and the like.
Predmet vynélezuThe object of the invention
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS509778A CS199427B1 (en) | 1978-08-03 | 1978-08-03 | Mortar having increased water-tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS509778A CS199427B1 (en) | 1978-08-03 | 1978-08-03 | Mortar having increased water-tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS199427B1 true CS199427B1 (en) | 1980-07-31 |
Family
ID=5395173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS509778A CS199427B1 (en) | 1978-08-03 | 1978-08-03 | Mortar having increased water-tightness |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS199427B1 (en) |
-
1978
- 1978-08-03 CS CS509778A patent/CS199427B1/en unknown
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