FR2684985A1 - Porous moulded objects, especially porous paving stones comprising a sulphur binder composition - Google Patents

Porous moulded objects, especially porous paving stones comprising a sulphur binder composition Download PDF

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Publication number
FR2684985A1
FR2684985A1 FR9115425A FR9115425A FR2684985A1 FR 2684985 A1 FR2684985 A1 FR 2684985A1 FR 9115425 A FR9115425 A FR 9115425A FR 9115425 A FR9115425 A FR 9115425A FR 2684985 A1 FR2684985 A1 FR 2684985A1
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Prior art keywords
sep
porous
binder composition
sulfur
molded articles
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Granted
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FR9115425A
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French (fr)
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FR2684985B1 (en
Inventor
Madiec Herve
Dumas Alain
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Dumez SA Lyonnaise Eaux
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Dumez SA Lyonnaise Eaux
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    • 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
    • C04B28/36—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 sulfur, sulfides or selenium
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C11/00—Details of pavings
    • E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
    • E01C11/224—Surface drainage of streets
    • E01C11/225—Paving specially adapted for through-the-surfacing drainage, e.g. perforated, porous; Preformed paving elements comprising, or adapted to form, passageways for carrying off drainage
    • E01C11/226—Coherent pavings
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C7/00—Coherent pavings made in situ
    • E01C7/08—Coherent pavings made in situ made of road-metal and binders
    • E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
    • C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Porous moulded objects comprising a coarse granulate and a binder composition which is a sulphur binder composition containing a fine granulate. The sulphur binder advantageously contains from 40 to 55 % by weight of modified sulphur and is employed in a proportion of approximately 40 % in relation to the coarse granulate. Particular application in the manufacture of porous paving stones.

Description

Lginvention concerne des objets moulés poreux, et notamment des pavés poreux. The invention relates to porous molded objects, in particular porous blocks.

On recherche de plus en plus à utiliser comme revêtements de routes, rues, trottoirs ou similaires des produits tendant à absorber les eaux pluviales pour éviter la formation de flaques ou de films d'eau nuisant en particulier à l'adhérence des pneumatiques de véhicules. On cannait notamment les enrobés poreux de revêtement routier dans lesquels un granulat est enrobé d'un liant pétrolier et qui ont un taux de porosité d'environ 18%, et les paves poreux pour rues, allées, trottoirs dans lesquels un granulat est enrobé l'un liant hydraulique (ciment) et qui ont un taux de porosité d'environ 13-15%. There is a growing interest in using road, street, sidewalk or similar coatings for products that tend to absorb rainwater to prevent puddles or water films that are particularly harmful to the adhesion of vehicle tires. In particular, porous asphalt pavements in which a granulate is coated with a petroleum binder and which have a porosity rate of about 18%, can be used, and porous pavers for streets, alleys and sidewalks in which a granulate is coated. a hydraulic binder (cement) and have a porosity of about 13-15%.

La porosité est limitée vers le haut par la nécessité d'une résistance mecanique convenable pour l'utilisation des pavés poreux, et donc par le pouvoir de collage du liant utilisé. Porosity is limited upward by the need for a suitable mechanical strength for the use of porous pavers, and therefore by the bonding strength of the binder used.

Or on a maintenant trouvé que l'on peut atteindre des porosités (taux de vide) superieures sans nuire à la tenue mécanique des produits obtenus en utilisant comme liant du premier granulat une composition de liant au soufre, comprenant un second granulat, du soufre et les adJuvants usuels, avantageusement une composition de mortier de soufre contenant de 40 à 55% de soufre. However, it has now been found that higher porosities (void fraction) can be achieved without impairing the mechanical strength of the products obtained by using as binder of the first granulate a sulfur binder composition, comprising a second granulate, sulfur and the usual adjuvants, advantageously a sulfur mortar composition containing from 40 to 55% of sulfur.

Cette composition de liant donne un taux de collage important du granulat et autorise donc un taux de vide important pouvant aller jusqu'a 25%, tout en conservant une résistance mécanique suffisante des pavés poreux.  This binder composition gives a high degree of sticking of the granulate and thus allows a significant void rate of up to 25%, while maintaining sufficient mechanical strength of the porous blocks.

On peut utiliser comme composition de mortier de soufre les compositions habituellement utilisées à 18-20% de soufre, contenant du sable ou un granulat plus grossier et les adjuvants usuels (charges minérales inertes, agents de modification du soufre) mais on a constaté que l'on obtient de meilleurs résultats en utilisant une composition de liant au soufre contenant 40-55% de soufre modifié et de 6-10% de charges minérales, notamment du talc, le reste à 100% en poils étant constitué par du sable. As sulfur compound compositions, the commonly used 18-20% sulfur compositions containing coarser sand or granulate and the usual auxiliaries (inert inorganic fillers, sulfur modifying agents) can be used, but it has been found that best results are obtained using a sulfur binder composition containing 40-55% modified sulfur and 6-10% mineral fillers, in particular talc, the remainder being 100% bristles consisting of sand.

Bien entendu tous les pourcentages intermédiaires pour la teneur en soufre sont utilisables selon la présente invention. Of course all the intermediate percentages for the sulfur content are usable according to the present invention.

Le soufre est avantageusement modifié par 3,5 à 8% de dicyclopentadiéne (DCPC) Cen poids par rapport au poids du soufre) ou par une quantité équivalente d'huile de silicone
Une telle composition de liant au soufre présente des propriétés de collage d'un granulat grossier particulièrement remarquables de telle sorte que l'on obtient des pavés ou produits moulés de porosité importante tout en conservant aux produits poreux une résistance mécanique importante.The sulfur is advantageously modified by 3.5 to 8% of dicyclopentadiene (DCPC) Cen weight with respect to the weight of sulfur) or by an equivalent amount of silicone oil
Such a sulfur binder composition has particularly remarkable coarse aggregate bonding properties such that cobbles or molded products of high porosity are obtained while retaining the porous products a high mechanical strength.

Des essais effectués avec plusieurs granulats de nature et de dimensions différentes montrent que l'on peut obtenir des pavés avec les taux de liant de l'ordre de 20 à 40%. Les taux de porosité et la résistance mécanique (essai de rupture par fendage selon la norme
NF P 98-303 - article 3.3) ne sont cependant pas toujours satisfaisants et varient selon la nature du granulat. Le taux de porosité est considéré comme convenable s'il est d'au moins environ 20% tandis que la résistance mécanique est satisfaisante lorsque l'essai de fendage donne une valeur égale ou supérieure à 4 XPa. Tests carried out with several aggregates of different types and sizes show that cobbles with binder levels of the order of 20 to 40% can be obtained. Porosity rates and mechanical strength (splitting failure test according to standard
NF P 98-303 - article 3.3) are however not always satisfactory and vary according to the nature of the granulate. The porosity level is considered suitable if it is at least about 20% while the mechanical strength is satisfactory when the splitting test gives a value equal to or greater than 4 XPa.

Les résultats d'essais effectués sont donnés dans le tableau suivant.

Figure img00030001
The results of tests carried out are given in the following table.
Figure img00030001

<tb> <SEP> Oimension
<tb> <SEP> des <SEP> % <SEP> de <SEP> mortier <SEP> Porosité <SEP> Absorption <SEP> Essai
<tb> Granulats <SEP> moules <SEP> de <SEP> soufre <SEP> par
<tb> rapport <SEP> aux <SEP> ou <SEP> de <SEP> surface <SEP> de <SEP> ruture
<tb> utilisés <SEP> 6x10x20 <SEP> 6x20x20 <SEP> poids <SEP> de
<tb> <SEP> gravillons <SEP> vide* <SEP> (m/s)% <SEP> par <SEP> fenda
<tb> <SEP> Nombre <SEP> Nombre <SEP> utilisés <SEP> (%) <SEP> ge** <SEP> (Mpa)
<tb> <SEP> 1 <SEP> 20 <SEP> 27 <SEP> 1,8 <SEP> 10-2 <SEP> 1,0
<tb> Gravillons <SEP> 1 <SEP> 30 <SEP> 20,7 <SEP> 4,6 <SEP> 10-3 <SEP> 3,1
<tb> <SEP> 1 <SEP> 40 <SEP> 14,7 <SEP> 3 <SEP> 10 <SEP> 2,2
<tb> roulés
<tb> <SEP> 1 <SEP> 20 <SEP> 26 <SEP> 7,7 <SEP> 10-3 <SEP> 2,0
<tb> <SEP> 4/6 <SEP> 1 <SEP> 30 <SEP> 20 <SEP> 3 <SEP> 10-3 <SEP> 4,6
<tb> <SEP> 1 <SEP> 40 <SEP> 14 <SEP> 0 <SEP> 9,5
<tb> <SEP> 1 <SEP> 20 <SEP> 34 <SEP> 2,6 <SEP> 10-2 <SEP> 2,6
<tb> Gravillons <SEP> 1 <SEP> 30 <SEP> 28,6 <SEP> 2,2 <SEP> 10-2 <SEP> 3,1
<tb> <SEP> 1 <SEP> 40 <SEP> 23 <SEP> 1,5 <SEP> 10-2 <SEP> 4,2
<tb> <SEP> concassés
<tb> <SEP> 1 <SEP> 20 <SEP> 31 <SEP> 2,6 <SEP> 10-2 <SEP> 2,0
<tb> <SEP> 6/10 <SEP> 1 <SEP> 30 <SEP> 25 <SEP> 2,6 <SEP> 10-2 <SEP> 3,3
<tb> <SEP> 1 <SEP> 40 <SEP> 20 <SEP> 1,2 <SEP> 10-2 <SEP> 4,1
<tb> # <SEP> <SEP> Essai <SEP> réalisé <SEP> selon <SEP> les <SEP> modalités <SEP> de <SEP> la <SEP> norme <SEP> NF <SEP> P <SEP> 18 <SEP> 411
<tb> j <SEP> * <SEP> Essai <SEP> réalisé <SEP> selon <SEP> les <SEP> modalités <SEP> de <SEP> l'article <SEP> 3,3 <SEP> de <SEP> la <SEP> norme <SEP> NF <SEP> P98-303
<tb> <tb><SEP> Oimension
<tb><SEP> of <SEP>% <SEP> of <SEP> mortar <SEP> Porosity <SEP> Absorption <SEP> Test
<tb> Aggregates <SEP> mussels <SEP> of <SEP> sulfur <SEP> by
<tb> report <SEP> to <SEP> or <SEP> of <SEP> surface <SEP> of <SEP> ruture
<tb> used <SEP> 6x10x20 <SEP> 6x20x20 <SEP> weight <SEP> of
<tb><SEP> chippings <SEP> empty * <SEP> (m / s)% <SEP> by <SEP> fenda
<tb><SEP> Number <SEP> Number <SEP> used <SEP> (%) <SEP> ge ** <SEP> (Mpa)
<tb><SEP> 1 <SEP> 20 <SEP> 27 <SEP> 1.8 <SEP> 10-2 <SEP> 1.0
<tb> Chippings <SEP> 1 <SEP> 30 <SEP> 20.7 <SEP> 4.6 <SEP> 10-3 <SEP> 3.1
<tb><SEP> 1 <SEP> 40 <SEP> 14.7 <SEP> 3 <SEP> 10 <SEP> 2,2
<tb> rolled
<tb><SEP> 1 <SEP> 20 <SEP> 26 <SEP> 7.7 <SEP> 10-3 <SEP> 2.0
<tb><SEP> 4/6 <SEP> 1 <SEP> 30 <SEP> 20 <SEP> 3 <SEP> 10-3 <SEP> 4,6
<tb><SEP> 1 <SEP> 40 <SEP> 14 <SEP> 0 <SEP> 9.5
<tb><SEP> 1 <SEP> 20 <SEP> 34 <SEP> 2,6 <SEP> 10-2 <SEP> 2,6
<tb> Chippings <SEP> 1 <SEP> 30 <SEP> 28.6 <SEP> 2.2 <SEP> 10-2 <SEP> 3.1
<tb><SEP> 1 <SEP> 40 <SEP> 23 <SEP> 1.5 <SEP> 10-2 <SEP> 4.2
crushed <tb><SEP>
<tb><SEP> 1 <SEP> 20 <SEP> 31 <SEP> 2.6 <SEP> 10-2 <SEP> 2.0
<tb><SEP> 6/10 <SEP> 1 <SEP> 30 <SEP> 25 <SEP> 2,6 <SEP> 10-2 <SEP> 3,3
<tb><SEP> 1 <SEP> 40 <SEP> 20 <SEP> 1.2 <SEP> 10-2 <SEP> 4.1
<tb>#<SEP><SEP> Test <SEP> performed <SEP> according to <SEP><SEP> modalities <SEP> of <SEP><SEP> standard <SEP> NF <SEP> P <SEP> 18 <SEP> 411
<tb> j <SEP> * <SEP><SEP> test performed <SEP> according to <SEP><SEP> modalities <SEP> of <SEP><SEP> 3.3 <SEP> article of <SEP > the <SEP> standard <SEP> NF <SEP> P98-303
<Tb>

On voit que les résultats optimaux en ce qui concerne l'équilibre entre la porosité et la résistance mécanique sont obtenus en utilisant 40% de martier de soufre (à 40-55% de soufre modifié), le reste étant constitué par des gravillons concassés 6/10. Une dimension inférieure de gravillons (4/6), bien que donnant parfois une meilleure résistance mécanique, ne donne pas une porosité suffisante. It can be seen that the optimum results with regard to the balance between the porosity and the mechanical strength are obtained by using 40% of sulfur broth (at 40-55% modified sulfur), the remainder consisting of crushed chippings. / 10. A smaller dimension of chippings (4/6), although sometimes giving better mechanical strength, does not give sufficient porosity.

On peut obtenir selon la présente invention des articles moulés de dimensions autres, par exemple, des dalles de revêtement, des bordures de trottoir, etc...  Molded articles of other dimensions, for example coating slabs, curbs, etc., can be obtained according to the present invention.

et pas seulement des pavés. and not just cobblestones.

Exemple de préparation d'une composition de liant au soufre. Example of Preparation of a Sulfur Binder Composition

On introduit dans un malaxeur chauffant 16,8 kg de sable et 3,2 kg de talc qu'on mélange et qu'on chauffe jusqu'à environ 140 C. 16.8 kg of sand and 3.2 kg of talc are introduced into a heating kneader and mixed and heated to about 140 ° C.

On y ajoute alors le produit obtenu en traitant 20 kg le soufre par 1,2 1 de DCPD pour plastifier le soufre, après refroidissement et concassage, et on poursuit le malaxage à une température d'environ 140 C C jusqu'à obtenir un produit fluide homogène que l'on peut utiliser immédiatement dans la fabrication d'articles moulés, ou que l'on peut refroidir jusqu'à une masse solide que l'on liquéfiera par chauffage pour une utilisation ultérieure. The product obtained is then added by treating 20 kg of sulfur with 1.2 l of DCPD to plasticize the sulfur, after cooling and crushing, and mixing is continued at a temperature of about 140 ° C. until a fluid product is obtained. homogeneous that can be used immediately in the manufacture of molded articles, or that can be cooled to a solid mass that will be liquefied by heating for later use.

Exemple de préparation d'articles moulés poreux. Example of preparation of porous molded articles.

En utilisant la composition de liant (mortier de soufre) préparée précédemment, on fabrique des pavés en utilisant des moules en métal le 6x10x20 cm ou de 6x20x20 cm. Les granulats sélectionnés (par exemple des gravillons concassés 6/10) sont chauffés à 140 C puis on y ajoute le taux choisi de mortier de soufre à 140 C et on mélange. Using the binder composition (sulfur mortar) previously prepared, pavers are made using 6x10x20 cm or 6x20x20 cm metal molds. The selected aggregates (for example 6/10 crushed chippings) are heated to 140 ° C., then the chosen rate of sulfur mortar is added at 140 ° C. and mixed.

Le mélange obtenu est mis en place, par exemple à la truelle, dans les moules en métal où on le laisse se solidifier par refroidissement à la température ambiante. The mixture obtained is placed, for example by trowel, into the metal molds where it is allowed to solidify by cooling to room temperature.

On obtient par démoulage des pavés ayant les caractéristiques indiquées dans le tableau précédent.  Molds having the characteristics indicated in the preceding table are obtained by demoulding.

Claims (7)

RVFNDICATIONSRVFNDICATIONS 1.- Articles moulés poreux comprenant un premier granulat grossier et une composition de liant, caractérisés en ce que la composition de liant est une composition de liant au soufre contenant un second granulat et des adjuvants usuels. 1. Porous molded articles comprising a first coarse aggregate and a binder composition, characterized in that the binder composition is a sulfur binder composition containing a second aggregate and customary builders. 2.- Articles moulés poreux selon la revendication 1, caractérisés en ce que ladite composition de liant au soufre contient du sable comme second granulat et de 40 à 554S en poids, par rapport à la composition totale, de soufre modifié, et des adjuvants usuels. 2. Porous molded articles according to claim 1, characterized in that said sulfur binder composition contains sand as the second granulate and from 40 to 55% by weight, based on the total composition, of modified sulfur, and usual adjuvants. . 3.- Articles moulés poreux selon la revendication 2, caractérisés en ce que le soufre est modifié par 3,5 à 8% de dicyclopentadiéne (DCPD) ou d'huile de silicone. 3. Porous molded articles according to claim 2, characterized in that the sulfur is modified with 3.5 to 8% dicyclopentadiene (DCPD) or silicone oil. 4.- Articles moulés poreux selon l'une quelconque des revendications 1 à 3, caractérisés en ce que ladite composition contient de 6 à 10% de charges minérales en tant qu'adjuvants usuels. 4. Porous molded articles according to any one of claims 1 to 3, characterized in that said composition contains from 6 to 10% of mineral fillers as usual adjuvants. 5.- Articles moulés poreux selon l'une quelconque des revendications î à 3, caractérisés en ce que la charge minérale est du talc. 5. Porous molded articles according to any one of claims 1 to 3, characterized in that the mineral filler is talc. 6.- Articles moulés poreux selon l'une quelconque des revendications 1 à 5, caractérisés en ce qu'ils contiennent de 70 à 60 % en poids de premier granulat grossier et de30 à 40 Je en poids de composition de liant au soufre. 6. Porous molded articles according to any one of claims 1 to 5, characterized in that they contain from 70 to 60% by weight of first coarse aggregate and from 30 to 40% by weight of sulfur binder composition. 7.- Articles moulés poreux selon la revendication 6, caractérisés en ce qu'ils ont un taux de vide de 20 à 25%.  7. Porous molded articles according to claim 6, characterized in that they have a void ratio of 20 to 25%.
FR9115425A 1991-12-12 1991-12-12 Porous moulded objects, especially porous paving stones comprising a sulphur binder composition Granted FR2684985A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU664058B2 (en) * 1991-12-12 1995-11-02 Aventis Pharma S.A. New cephalosporins containing in position 7 a substituted benzyloxyimino radical, their preparation process and their use as medicaments

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2517676C1 (en) * 2012-11-30 2014-05-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Петербургский государственный университет путей сообщения" High-strength concrete

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE481387C (en) * 1924-06-12 1929-08-20 Schumacher Sche Fabrik G M B H Process for the production of porous electricity non-conductive moldings for diffusion, filter u. like purposes
FR1010034A (en) * 1948-07-23 1952-06-06 Process for the production of a plastic and moldable mass replacing stone and imitating marble
FR2270218A1 (en) * 1974-03-19 1975-12-05 Shell France
US4025352A (en) * 1974-12-24 1977-05-24 Basf Aktiengesellschaft Manufacture of sulfur concrete
FR2573420A1 (en) * 1984-09-13 1986-05-23 Nat Center Const Lab Development of a mixture based on sulphur with a view to obtaining a material of construction.
EP0381903A1 (en) * 1989-02-10 1990-08-16 BEUGNET, Société dite Coated materials comprising coarse aggregate and bituminous binder for the construction of layers of roadway coverings and porous roadway covering obtained from such coated materials especially adapted for drainage through surface and noise abatement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE481387C (en) * 1924-06-12 1929-08-20 Schumacher Sche Fabrik G M B H Process for the production of porous electricity non-conductive moldings for diffusion, filter u. like purposes
FR1010034A (en) * 1948-07-23 1952-06-06 Process for the production of a plastic and moldable mass replacing stone and imitating marble
FR2270218A1 (en) * 1974-03-19 1975-12-05 Shell France
US4025352A (en) * 1974-12-24 1977-05-24 Basf Aktiengesellschaft Manufacture of sulfur concrete
FR2573420A1 (en) * 1984-09-13 1986-05-23 Nat Center Const Lab Development of a mixture based on sulphur with a view to obtaining a material of construction.
EP0381903A1 (en) * 1989-02-10 1990-08-16 BEUGNET, Société dite Coated materials comprising coarse aggregate and bituminous binder for the construction of layers of roadway coverings and porous roadway covering obtained from such coated materials especially adapted for drainage through surface and noise abatement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
C&EN 1979, page 30; 'Sulfur paving material begins road test' *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU664058B2 (en) * 1991-12-12 1995-11-02 Aventis Pharma S.A. New cephalosporins containing in position 7 a substituted benzyloxyimino radical, their preparation process and their use as medicaments

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