FR2656863A1 - Hydraulic mix containing active carbon for the preparation of a grout or of a concrete - Google Patents
Hydraulic mix containing active carbon for the preparation of a grout or of a concrete Download PDFInfo
- Publication number
- FR2656863A1 FR2656863A1 FR9000087A FR9000087A FR2656863A1 FR 2656863 A1 FR2656863 A1 FR 2656863A1 FR 9000087 A FR9000087 A FR 9000087A FR 9000087 A FR9000087 A FR 9000087A FR 2656863 A1 FR2656863 A1 FR 2656863A1
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- FR
- France
- Prior art keywords
- weight
- parts
- hydraulic
- grout
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/022—Carbon
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Sealing Material Composition (AREA)
Abstract
Description
La présente invention à pour objet un nouveau mélange hydraulique contenant du charbon actif qui trouve tout particulièrement une utilisation dans la préparation de coulis ou de bétons destinés à empêcher ou à freiner la migration de substances ou matières organiques présentes dans les sols et susceptibles de provenir de diverses origines, en particulier de bassins de décantation d'usines chimiques ou éventuellement à la suite d'une contamination accidentelle du sol. The present invention relates to a new hydraulic mixture containing activated carbon which is particularly useful in the preparation of grouts or concretes intended to prevent or slow the migration of substances or organic materials present in the soil and likely to come from various origins, in particular from settling tanks of chemical plants or possibly as a result of accidental contamination of the soil.
Si lton peut lutter de façon efficace vis-à-vis de certains cations métalliques polluants comme ceci a été proposé dans la demande de brevet français n" 84.11863, aucune solution satisfaisante nra cependant été préconisée pour retenir les matières et substances organiques qui pour certaines d'entres elles peuvent être particulièrement toxiques. If it can fight effectively against certain pollutant metal cations as proposed in French patent application No. 84.11863, no satisfactory solution has been recommended, however, for retaining organic substances and substances which for certain types of among them can be particularly toxic.
Par ailleurs, dans certaines circonstances, il est nécessaire de pouvoir stocker dans les conditions strictes de sécurité des résidus de matières organiques soit dans des réservoirs appropriés soit dans des containers, ceci de façon provisoire ou définitive. I1 convient donc que ceux-ci puissent être particulièrement étanches en vue d'éviter toute contamination de l'environnement extérieure. Furthermore, under certain circumstances, it is necessary to be able to store, under the strict conditions of safety, residues of organic matter either in suitable containers or in containers, this temporarily or permanently. They should therefore be particularly watertight in order to avoid any contamination of the external environment.
Après différentes études, on a constaté de façon tout à fait surprenante, qu'en incorporant dans des mélanges hydrauliques classiques une certaine proportion de charbon actif, on obtenait une excellente rétention des matières organiques et plus particulièrement de certains composés aromatiques tels que les phénols et leurs dérivés. After various studies, it has been found quite surprisingly that by incorporating in conventional hydraulic mixtures a certain proportion of activated carbon, an excellent retention of organic matter and more particularly of certain aromatic compounds such as phenols and their derivatives.
La présente invention a donc pour objet un nouveau mélange hydraulique pour la préparation de coulis ou de bétons comprenant pour 1000 parties en poids d'eau
- de 50 à 2000 parties en poids de ciment ou de liant hydraulique,
- de 0 à 200 parties en poids de bentonite, mais de préférence
de 25 à 200 parties en poids et,
- au moins 5 parties en poids de charbon actif et de préférence
de 5 à 500 parties en poids.The subject of the present invention is therefore a new hydraulic mixture for the preparation of grouts or concretes comprising for 1000 parts by weight of water
from 50 to 2000 parts by weight of cement or hydraulic binder,
from 0 to 200 parts by weight of bentonite, but preferably
from 25 to 200 parts by weight and,
- at least 5 parts by weight of activated carbon and preferably
from 5 to 500 parts by weight.
Selon l'invention le charbon actif du mélange hydraulique peut se présenter soit sous forme d'une poudre soit sous forme de grains, mais de préférence la granulométrie doit etre inférieure à 80 jjm. According to the invention, the active carbon of the hydraulic mixture may be in the form of a powder or in the form of grains, but preferably the particle size must be less than 80 μm.
Bien que le charbon actif soit connu comme étant un agent absorbant de composés aromatiques et également de composés aliphatiques non saturés, il n'était absolument pas évident, qu'en l'incorporant dans un mélange hydraulique, il puisse néanmoins présenter une bonne efficacité comme absorbeur de composés organiques et en particulier de composés aromatiques. Although activated carbon is known to be an absorbent of aromatic compounds and also of unsaturated aliphatic compounds, it was by no means obvious that, by incorporating it into a hydraulic mixture, it could nonetheless have a good efficacy as absorber of organic compounds and in particular aromatic compounds.
Les études qui ont été réalisées ont permis en effet de mettre en évidence que contrairement à toute attente le taux de rétention des composés organiques était excellent et même supérieur à ce qui était théoriquement prévisible sans que l'on puisse trouver d'explication satisfaisante à ce phénomène. The studies that have been carried out have made it possible to demonstrate that, contrary to all expectations, the retention rate of organic compounds was excellent and even higher than theoretically predictable, without any satisfactory explanation being found for this. phenomenon.
Selon une première forme de réalisation de l'invention, le mélange hydraulique se présente sous forme d'un coulis permettant lrétanchéification d'un volume de stockage de déchets dans le sol, par isolation dudit volume par formation d'une barrière ou écran drétanchéification et de rétention des matières organiques. Ce coulis contient de préférence pour 1000 parties en poids d'eau
- de 50 à 200 parties en poids de ciment ou de liant hydraulique,
- de 25 à 35 parties en poids de bentonite, et
- de 5 à 25 parties en poids de charbon actif.According to a first embodiment of the invention, the hydraulic mixture is in the form of a slurry for sealing a waste storage volume in the soil, by isolating said volume by forming a barrier or screen for sealing and retention of organic matter. This grout preferably contains 1000 parts by weight of water
from 50 to 200 parts by weight of cement or hydraulic binder,
from 25 to 35 parts by weight of bentonite, and
from 5 to 25 parts by weight of activated carbon.
Comme ciments ou liants hydrauliques on peut utiliser les différents types connus par exemple du ciment Portland, ainsi que des ciments comportant par exemple une certaine quantité de laitier de haut-fourneau ou de cendres volantes, comme les ciments commercialisés sous les références CLK (ciment contenant au moins 80% de laitier) et CPJ (ciment contenant de 70 à 80% de clinker). As cements or hydraulic binders can be used the various known types, for example Portland cement, as well as cements comprising for example a certain amount of blast furnace slag or fly ash, such as cements marketed under the references CLK (cement containing at least 80% slag) and CPJ (cement containing 70 to 80% clinker).
Comme indiqué ci-dessus la quantité de ciment ou de liant peut varier dans de larges proportions car celle-ci est en fait fonction de la résistance mécanique que l'on désire conférer à l'écran d'étanchéité présentant des propriétés de rétention des substances organiques. As indicated above, the amount of cement or binder can vary in large proportions because this is in fact a function of the mechanical strength that it is desired to impart to the sealing screen having properties of retention of the substances. organic.
Bien entendu le coulis tel que défini ci-dessus peut également contenir d'autres adjuvants conventionnels tels que par exemple un accélérateur tel que le chlorure de calcium ou un retardateur de prise tel que le lignosulfite de sodium. Of course, the slurry as defined above may also contain other conventional adjuvants such as, for example, an accelerator such as calcium chloride or a setting retarder such as sodium lignosulphite.
Selon un autre mode de réalisation préféré de l'invention, le mélange hydraulique sert à la fabrication de bétons pour la réalisation de cuves ou réservoirs pour le stockage de substances ou matières organiques. According to another preferred embodiment of the invention, the hydraulic mixture is used for the manufacture of concretes for the production of tanks or tanks for the storage of substances or organic materials.
Selon cette forme de réalisation le béton comprend pour 1000 parties en poids d'eau
- de 1000 à 2000 parties en poids de ciment ou de liant
hydraulique,
- de 100 à 200 parties en poids de bentonite,
- de 20 à 50 parties en poids de charbon actif, et
- de 1000 à 1800 parties en poids de sable ou de tout matériau inerte. According to this embodiment the concrete comprises 1000 parts by weight of water
from 1000 to 2000 parts by weight of cement or binder
hydraulic,
from 100 to 200 parts by weight of bentonite,
from 20 to 50 parts by weight of activated carbon, and
from 1000 to 1800 parts by weight of sand or of any inert material.
Selon cette forme de réalisation, le béton peut également contenir les mêmes adjuvants que ceux ci-dessus mentionnés pour les coulis. According to this embodiment, the concrete may also contain the same additives as those mentioned above for the grouts.
ETUDES COMPARATIVES
En vue de montrer les bonnes qualités d'absorption des substances organiques du mélange hydraulique selon l'invention, on a préparé les coulis suivants
Coulis A : Pour 1000 litres d'eau
- 32 kilos de bentonite CV15,
- 100 kilos de ciment CLK45,
- 10 kilos de charbon actif (Akticarbon TK de la Société CECA),
Coulis B : Pour 1000 litres d'eau
- 32 kilos de bentonite CV15,
- 100 kilos de ciment CLK45,
- 20 kilos de charbon actif (Akticarbon TK de la Société CECA).COMPARATIVE STUDIES
In order to show the good absorption qualities of the organic substances of the hydraulic mixture according to the invention, the following grouts were prepared:
Grout A: For 1000 liters of water
- 32 kilos of CV15 bentonite,
- 100 kilos of CLK45 cement,
- 10 kilos of activated charcoal (Akticarbon TK from CECA),
Grout B: For 1000 liters of water
- 32 kilos of CV15 bentonite,
- 100 kilos of CLK45 cement,
- 20 kilos of activated charcoal (Akticarbon TK from CECA).
Compte tenu de la composition des Coulis A et B, le Coulis A contient 6g de charbon actif et le Coulis B, 11,3g de charbon actif pour 100g de coulis hydraté séché, c'est à dire prenant en compte l'eau de constitution après durcissement. Given the composition of Grout A and B, Grout A contains 6g of activated carbon and Grout B, 11.3g of activated carbon per 100g of dried hydrated grout, ie taking into account the water of constitution after hardening.
MODE OPERATOIRE
Après mélange des constituants respectifs des Coulis A et B, ceux-ci ont été soumis à un durcissement pendant une période de 28 jours.OPERATIVE MODE
After mixing the respective constituents of Grout A and B, they were cured for a period of 28 days.
Les coulis ont ensuite été broyés et tamisés (diamètre moyen des particules 80 pm). The slurries were then crushed and sieved (average particle diameter 80 μm).
5g de chacune des poudres fines obtenues à partir des Coulis A et B, ont alors été mélangés et agités dans 250 ml d'une solution de phénol de concentration croissante. 5 g of each of the fine powders obtained from Grouts A and B were then mixed and stirred in 250 ml of a phenol solution of increasing concentration.
On a prélèvé alors 30 ml de chacune des solutions après atteinte de l'équilibre. Après centrifugation et filtration, le phénol a alors été dosé dans chacune des fractions liquides recueillies. 30 ml of each of the solutions were then removed after reaching equilibrium. After centrifugation and filtration, the phenol was then assayed in each of the collected liquid fractions.
RESULTATS
Pour 100g de Coulis A contenant 6g de charbon actif, le dosage a permis de déterminer que le phénol retenu à l'équilibre représentait une masse de 2,2g.RESULTS
For 100g of Grout A containing 6g of activated carbon, the assay made it possible to determine that the phenol retained at equilibrium represented a mass of 2.2g.
Pour 100g de Coulis B contenant 11,3g de charbon actif, on a trouvé que le phénol retenu à l'équilibre représentait une masse de 6g. For 100 g of Grout B containing 11.3 g of activated carbon, it was found that the phenol retained at equilibrium represented a mass of 6 g.
Etant donné que le Coulis B contenait une teneur en charbon actif double de celle du Coulis A, on aurait donc du normalement s'attendre à ce que le phénol retenu à l'équilibre présente une masse de 4,4g, alors que comme indiqué ci-dessus l'analyse a permis de déterminer que cette masse était de 6g. Since Grout B contained an active carbon content twice that of Grout A, it would normally be expected that the phenol retained at equilibrium would have a mass of 4.4 g, whereas as shown in Above the analysis it was determined that this mass was 6g.
Par ailleurs en vue de compléter cette étude, 100g de charbon actif pur ont été traités dans les mêmes conditions et l'on a constaté que le phénol retenu à l'équilibre ne représentait qu'une masse de 12g. Furthermore, in order to complete this study, 100 g of pure activated carbon were treated under the same conditions and it was found that the phenol retained at equilibrium represented only a mass of 12 g.
On a par ailleurs vérifié que le coulis pur hydraté ne contenant pas de charbon actif n'avait aucun effet de rétention du phénol. It was furthermore verified that the pure hydrated slurry containing no active carbon had no retention effect of the phenol.
Il résulte de cette étude comparative que les taux de rétention du phénol sont donc les suivants
<tb> atériau <SEP> Taux <SEP> de <SEP> rétention
<tb> <SEP> g <SEP> de <SEP> phénol/g <SEP> de <SEP> charbon <SEP> actif
<tb> Coulis <SEP> A <SEP> 0,37
<tb> Coulis <SEP> B <SEP> 0,53
<tb> Coulis <SEP> B <SEP> 0,53
<tb> Charbon <SEP> actif <SEP> pur <SEP> 0,12
<tb>
On va maintenant donner à titre d'illustration et sans aucun caractère limitatif plusieurs exemples des mélanges hydrauliques selon l'invention contenant du charbon actif.<tb> Attere <SEP> SEP Rate> of <SEP> Retention
<tb><SEP> g <SEP> of <SEP> phenol / g <SEP> of <SEP> Charcoal <SEP> active
<tb> Grout <SEP> A <SEP> 0.37
<tb> Grout <SEP> B <SEP> 0.53
<tb> Grout <SEP> B <SEP> 0.53
<tb> Coal <SEP> active <SEP> pure <SEP> 0.12
<Tb>
Several examples of the hydraulic mixtures according to the invention containing active charcoal will now be given by way of illustration and without any limiting character.
EXEMPLE 1
On prépare selon l'invention un coulis d'étanchéificatîon comprenant pour 1000 litres d'eau:
- 250 kilos de ciment CLK 45,
- 30 kilos de bentonite de CV15, et
- 15 kilos de charbon actif (Akticarbon TK de la Société CECA).EXAMPLE 1
According to the invention, a sealing grout comprising 1000 liters of water is prepared:
- 250 kilos of CLK 45 cement,
- 30 kilos of CV15 bentonite, and
- 15 kilos of activated charcoal (Akticarbon TK from CECA).
EXEMPLE 2
On prépare selon l'invention un coulis d'injection comprenant pour 1000 litres d'eau :
- 350 kilos de ciment CLK 45,
- 30 kilos de bentonite de CV15, et
- 20 kilos de charbon actif (Akticarbon TK de la Société CECA). EXAMPLE 2
According to the invention, an injection grout comprising 1000 liters of water is prepared:
- 350 kilograms of CLK 45 cement,
- 30 kilos of CV15 bentonite, and
- 20 kilos of activated charcoal (Akticarbon TK from CECA).
EXEMPLE 3
On prépare selon l'invention un béton pour la réalisation d'un container pour le stockage de substances organiques, comprenant pour 1000 litres d'eau
- 1800 kilos de ciment CLK 45,
- 150 kilos de bentonite CV15,
- 30 kilos de charbon actif, et
- 1200 kilos de sable. EXAMPLE 3
According to the invention, a concrete is prepared for producing a container for the storage of organic substances, comprising for 1000 liters of water
- 1800 kilos of CLK 45 cement,
- 150 kilos of CV15 bentonite,
- 30 kilos of activated charcoal, and
- 1200 pounds of sand.
Claims (6)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9000087A FR2656863B1 (en) | 1990-01-05 | 1990-01-05 | HYDRAULIC MIXTURE CONTAINING ACTIVE CARBON FOR THE PREPARATION OF A GROUT OR A CONCRETE. |
| JP2015945A JPH06102564B2 (en) | 1990-01-05 | 1990-01-25 | Hydraulic mixture containing activated carbon for grout or concrete production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9000087A FR2656863B1 (en) | 1990-01-05 | 1990-01-05 | HYDRAULIC MIXTURE CONTAINING ACTIVE CARBON FOR THE PREPARATION OF A GROUT OR A CONCRETE. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2656863A1 true FR2656863A1 (en) | 1991-07-12 |
| FR2656863B1 FR2656863B1 (en) | 1994-01-14 |
Family
ID=9392546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9000087A Expired - Fee Related FR2656863B1 (en) | 1990-01-05 | 1990-01-05 | HYDRAULIC MIXTURE CONTAINING ACTIVE CARBON FOR THE PREPARATION OF A GROUT OR A CONCRETE. |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH06102564B2 (en) |
| FR (1) | FR2656863B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0562969A1 (en) * | 1992-03-27 | 1993-09-29 | Compagnie Du Sol | Composition for manufacturing a versatile anti-pollution barrier and method of manufacturing such a barrier |
| WO1993024426A1 (en) * | 1992-05-22 | 1993-12-09 | Schneider John F | Homogeneous compositions of cementitious/particulates/tar componets |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR612129A (en) * | 1925-06-22 | 1926-10-18 | Ciment Portland Artificiel De | Processes for the manufacture of waterproof cements and mortars |
| US2259134A (en) * | 1938-07-23 | 1941-10-14 | Gen Electric | Electrical insulation material |
| DE932917C (en) * | 1952-05-27 | 1955-09-12 | Siemens Ag | Process for the production of mass resistors from conductive components and cement as a binding agent |
| FR2408372A1 (en) * | 1977-10-19 | 1979-06-08 | Stablex Ag | PROCESS FOR THE TREATMENT OF HAZARDOUS WASTE |
| BE899598A (en) * | 1984-05-07 | 1984-08-31 | Arklow S A | Neutralisation and solidification of industrial waste - by mixing in acidic medium with silicate(s), neutralising the silicic acid formed and solidifying with e.g. portland cement |
| GB2162223A (en) * | 1984-07-26 | 1986-01-29 | Soletanche | Process for leakproofing a storage space for wastes containing metal cations |
| DE3601357A1 (en) * | 1986-01-03 | 1987-07-09 | Georg Dipl Chem Dr Phi Fritsch | Process for disposing of non-recyclable waste oils and oil substitutes |
| JPS62178642A (en) * | 1986-02-01 | 1987-08-05 | 株式会社 日本アカデミツクセンタ− | Building material |
| DE3717085A1 (en) * | 1987-05-21 | 1988-12-08 | Strahlen Umweltforsch Gmbh | Process for immobilising toxic pollutants |
| GB2217316A (en) * | 1988-04-13 | 1989-10-25 | Evenbury Ltd | Process for preserving waste, subsoils and the like |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1049708A (en) * | 1975-03-21 | 1979-03-06 | Robert W. Gaines | Shrinkage inhibition of cementitious systems through the addition of specially processed carbonaceous materials |
| JPH0753597B2 (en) * | 1987-03-13 | 1995-06-07 | 電気化学工業株式会社 | Cement admixture and cement composition |
-
1990
- 1990-01-05 FR FR9000087A patent/FR2656863B1/en not_active Expired - Fee Related
- 1990-01-25 JP JP2015945A patent/JPH06102564B2/en not_active Expired - Lifetime
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR612129A (en) * | 1925-06-22 | 1926-10-18 | Ciment Portland Artificiel De | Processes for the manufacture of waterproof cements and mortars |
| US2259134A (en) * | 1938-07-23 | 1941-10-14 | Gen Electric | Electrical insulation material |
| DE932917C (en) * | 1952-05-27 | 1955-09-12 | Siemens Ag | Process for the production of mass resistors from conductive components and cement as a binding agent |
| FR2408372A1 (en) * | 1977-10-19 | 1979-06-08 | Stablex Ag | PROCESS FOR THE TREATMENT OF HAZARDOUS WASTE |
| BE899598A (en) * | 1984-05-07 | 1984-08-31 | Arklow S A | Neutralisation and solidification of industrial waste - by mixing in acidic medium with silicate(s), neutralising the silicic acid formed and solidifying with e.g. portland cement |
| GB2162223A (en) * | 1984-07-26 | 1986-01-29 | Soletanche | Process for leakproofing a storage space for wastes containing metal cations |
| DE3601357A1 (en) * | 1986-01-03 | 1987-07-09 | Georg Dipl Chem Dr Phi Fritsch | Process for disposing of non-recyclable waste oils and oil substitutes |
| JPS62178642A (en) * | 1986-02-01 | 1987-08-05 | 株式会社 日本アカデミツクセンタ− | Building material |
| DE3717085A1 (en) * | 1987-05-21 | 1988-12-08 | Strahlen Umweltforsch Gmbh | Process for immobilising toxic pollutants |
| GB2217316A (en) * | 1988-04-13 | 1989-10-25 | Evenbury Ltd | Process for preserving waste, subsoils and the like |
Non-Patent Citations (1)
| Title |
|---|
| CHEMICAL ABSTRACTS, vol. 107, no. 20, novembre 1987, page 406, résumé no. 182368j, Columbus, Ohio, US; & JP-A-62 178 642 (NIPPON ACADEMIC CENTER K.K.) 05-08-1987 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0562969A1 (en) * | 1992-03-27 | 1993-09-29 | Compagnie Du Sol | Composition for manufacturing a versatile anti-pollution barrier and method of manufacturing such a barrier |
| FR2689121A1 (en) * | 1992-03-27 | 1993-10-01 | Sol Cie | Composition for producing a polyvalent anti-pollution barrier and method for producing such a barrier |
| WO1993024426A1 (en) * | 1992-05-22 | 1993-12-09 | Schneider John F | Homogeneous compositions of cementitious/particulates/tar componets |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06102564B2 (en) | 1994-12-14 |
| JPH03208853A (en) | 1991-09-12 |
| FR2656863B1 (en) | 1994-01-14 |
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Effective date: 20091030 |