TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 OBS

The pressurized dual seam [testing] method was mentioned earlier in connection with the double-wedge thermal seam method. The air channel that results between the double seam is inflated to approximately 30 lb/in[ upperscript 2] for 100 to 200 ft. If no drop in pressure occurs, the seam is acceptable;...  1, record 1, English, - pressurized%20dual%20seam%20test

Record number: 1, Textual support number: 2 OBS

The hot wedge or hot knife method consists of an electronically heated resistance element in the shape of a blade that is passed between the two sheets to be sealed. As it melts the surfaces, roller pressure is applied. An interesting variation is the dual-hot-wedge method, which forms two parallel seams with an unbonded space between them. This space is subsequently pressurized with air and any lowering of pressure signifies a leak in the seam.  1, record 1, English, - pressurized%20dual%20seam%20test

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 OBS

Contrôle d'étanchéité de soudure sur [géo]membrane bitumineuse au moyen d'une cloche à vide.  2, record 1, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20double%20soudure%20sous%20pression

Record number: 1, Textual support number: 2 OBS

Double soudure: Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression  2, record 1, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20double%20soudure%20sous%20pression

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Seam Testing Methods... There are number of procedures available which have applicability on different geomembranes... the ultrasonic impedance plane method works on the principle of acoustic impedance. A continuous wave of 160 to 185 kHz is sent through the seamed liner and a characteristic dot pattern is displayed on a CRT screen. Calibration of the dot pattern is required to signify a good seam; otherwise, it is not. The method has potential for all types of geomembranes but still needs additional development work.  1, record 2, English, - ultrasonic%20impedance%20plane%20method

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

Seam Testing Methods... Electronic methods are the newest of the methods used to evaluate seam integrity. The ultrasonic pulse echo technique is basically a thickness measurement technique and is only for use with nonreinforced geomembranes. Here a high-frequency pulse is sent into the upper geomembrane and(in the case of a good seam) reflects off of the bottom of the lower one. If, however, an unbonded area is present, the reflection will occur at the unbonded interface. The use of two transducers, a pulse generator, and a CRT monitor are required.  1, record 3, English, - ultrasonic%20pulse%20echo%20technique

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 OBS

Contrôle d'étanchéité de soudure sur membrane bitumineuse au moyen d'une cloche à vide.  2, record 3, French, - technique%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20par%20%C3%A9chographie

Record number: 3, Textual support number: 2 OBS

Contrôle écographique / pulse echo technique : Technique de contrôle dans laquelle on utilise les échos obtenus par réflexion de l'onde ultrasonore sur toute solution de continuité.  3, record 3, French, - technique%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20par%20%C3%A9chographie

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 OBS

Seam testing methods... Electronic methods are the newest of the methods used to evaluate seam integrity. The ultrasonic pulse echo technique is basically a thickness measurement technique and is only for use with nonreinforced geomembranes. Here a high-frequency pulse is sent into the upper geomembrane and(in the case of a good seam) reflects off of the bottom of the lower one. If, however, an unbonded area is present, the reflection will occur at the unbonded interface. The use of two transducers, a pulse generator, and a CRT [cathode-ray tube] monitor are required.  1, record 4, English, - pulse%2Decho%20seam%20test

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 OBS

Contrôle d'étanchéité de soudure sur membrane bitumineuse au moyen d'une cloche à vide.  2, record 4, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure%20par%20%C3%A9chographie

Record number: 4, Textual support number: 2 OBS

Double soudure: Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression.  2, record 4, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure%20par%20%C3%A9chographie

Record number: 4, Textual support number: 3 OBS

Joint: Zone de liaison entre lés, nappes (ou panneaux).  2, record 4, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure%20par%20%C3%A9chographie

Record number: 4, Textual support number: 4 OBS

Contrôle écographique / Pulse echo technique: Technique de contrôle dans laquelle on utilise les échos obtenus par réflexion de l'onde ultrasonore sur toute solution de continuité.  3, record 4, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure%20par%20%C3%A9chographie

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

A device used to assess the integrity of field seams in membrane liners.  1, record 5, English, - vacuum%20box

Record number: 5, Textual support number: 1 CONT

Seam Testing Methods... Vacuum chamber(boxes) have been used where a 3-ft-long box with a transparent top is placed over the seam and a vacuum of approximately 2. 5 lb/in. superscript 2] applied. When a leak is encountered the soapy solution originally placed over the seam shows bubbles. These bubbles are due to air entering from beneath the liner and passing through the unbonded zone. The test is slow to perform and it is often difficult to make a vacuum-tight joint at the bottom of the box where it passes over the seam edges.  1, record 5, English, - vacuum%20box

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

Enceinte dans laquelle on peut faire le vide ou seulement créer une dépression et dans laquelle on place la surface à essayer badigeonnée d'un liquide mouillant. Cette surface est examinée à travers un hublot permettant d'observer l'absence ou l'apparition de bulles.  2, record 5, French, - cloche%20%C3%A0%20vide

Record number: 5, Textual support number: 1 CONT

Contrôle d'étanchéité de soudure sur membrane bitumineuse au moyen d'une cloche à vide.  1, record 5, French, - cloche%20%C3%A0%20vide

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 OBS

vacuum box: A device used to assess the integrity of field seams in membrane liners.  1, record 6, English, - vacuum%20chamber%20seam%20test

Record number: 6, Textual support number: 2 OBS

Seam testing Methods... Vacuum chambers(boxes) have been used where a 3-ft-long box is placed over the seam and a vacuum af approximately 2. 5 lb/in. ² applied. When a leak is encountered the soapy solution originally placed over the seam shows bubbles. These bubbles are due to air entering from beneath the liner and passing through the unbonded zone. The test is slow to perform and it is often difficult to make a vacuum-tight joint at the bottom of the box where it passes over the seam edges.  1, record 6, English, - vacuum%20chamber%20seam%20test

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 OBS

Contrôle d'étanchéité de soudure sur membrane bitumineuse au moyen d'une cloche à vide.  2, record 6, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure%20par%20cloche%20%C3%A0%20vide

Record number: 6, Textual support number: 2 OBS

Double soudure: Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression.  2, record 6, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure%20par%20cloche%20%C3%A0%20vide

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 OBS

The pressurized dual seam [testing] method was mentioned earlier in connection with the double-wedge thermal seam method. The air channel that results between the double seam is inflated to approximately 30 lb/in² for 100 to 200 ft. If no drop in pressure occurs, the seam is acceptable;,,,  2, record 7, English, - dual%20seaming

Record number: 7, Textual support number: 2 OBS

The hot wedge or hot knife method consists of an electrically heated resistance element in the shape of a blade that is passed between the two sheets to be sealed. As it melts the surfaces, roller pressure is applied. An interesting variation is the dual-hot-wedge method, which forms two parallel seams with an unbonded space between them. This space is subsequently pressurized with air and any lowering of pressure signifies a leak in the seam  2, record 7, English, - dual%20seaming

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 OBS

Double soudure : Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression.  2, record 7, French, - assemblage%20par%20double%20soudure

Record number: 7, Textual support number: 2 OBS

Soudure : Longtemps utilisé comme synonyme de "soudage" (...), ce terme est maintenant réservé exclusivement pour désigner le cordon de soudure exécuté par un procédé de soudage quelconque.  3, record 7, French, - assemblage%20par%20double%20soudure

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 OBS

Seam Testing Methods. The testing of seams after they have been made is critically important since it is usually the last chance for evaluation before the liner is covered and used. There are a number of procedures available which have applicability on different geomembranes.... In each of these methods the goal is to check 100% of all seams. Electronic methods are the newest of the methods used to evaluate seam integrity.  2, record 8, English, - seam%20test

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Contrôle d'étanchéité de soudure sur [géo]membrane bitumineuse au moyen d'une cloche à vide.  1, record 8, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure

Record number: 8, Textual support number: 1 OBS

Double soudure: Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression.  1, record 8, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure

Record number: 8, Textual support number: 2 OBS

Joint: Zone de liaison entre lés, nappes (ou panneaux).  1, record 8, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

Seam Testing Methods. The testing of seams after they have been made is critically important since it is usually the last chance for evaluation before the liner is covered and used. There are a number of procedures available which have applicability on different geomembranes... In each of these methods the goal is to check 100% of all seams. Electronic methods are the newest of the methods used to evaluate seam integrity.  1, record 9, English, - seam%20testing%20method

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 OBS

Contrôle d'étanchéité de soudure sur [géo]membrane bitumineuse au moyen d'une cloche à vide,  2, record 9, French, - m%C3%A9thode%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure

Record number: 9, Textual support number: 2 OBS

Double soudure: Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression.  2, record 9, French, - m%C3%A9thode%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure

Record number: 9, Textual support number: 3 OBS

Joint: Zone de liaison entre lés, nappes (ou panneaux).  2, record 9, French, - m%C3%A9thode%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 CONT

The pressurized dual seam [testing] method was mentioned earlier in connection with the double-wedge thermal seam method. The air channel that results between the double seam is inflated to approximately 30 lb/in² for 100 to 200 ft. If no drop in pressure occurs, the seam is acceptable;...  1, record 10, English, - dual%20seam

Record number: 10, Textual support number: 1 OBS

The hot wedge or hot knife method consists of an electronically heated resistance element in the shape of a blade that is passed between the two sheets to be sealed. As it melts the surfaces, roller pressure is applied. An interesting variation is the dual-hot-wedge method, which forms two parallel seams with an unbonded space between them. This space is subsequently pressurized with air and any lowering of pressure signifies a leak in the seam  1, record 10, English, - dual%20seam

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 OBS

Joint: Zone de liaison entre lés, nappes (ou panneaux),  2, record 10, French, - double%20joint

Record number: 10, Textual support number: 2 OBS

Double soudure: Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  English

Record number: 11, Textual support number: 1 CONT

Seam Testing Methods... The pressurized dual seam [testing] method was mentioned earlier in connection with the double-wedge thermal seam method. The air channel that results between the double seam is inflated to approximately 30 lb/in² for 100 to 200 ft. If no drop in pressure occurs, the seam is acceptable;...  1, record 11, English, - pressurized%20dual%20seam%20method

Record number: 11, Textual support number: 1 OBS

The hot wedge or hot knife method consists of an electrically heated resistance element in the shape of a blade that is passed between the two sheets to be sealed. As it melts the surfaces, roller pressure is applied. An interesting variation is the dual-hot-wedge method, which forms two parallel seams with an unbonded space between them. This space is subsequently pressurized with air and any lowering of pressure signifies a leak in the seam  1, record 11, English, - pressurized%20dual%20seam%20method

Record 11,  Textual support,  French

Record number: 11, Textual support number: 1 OBS

Contrôle d'étanchéité de soudure sur [géo]membrane bitumineuse au moyen d'une cloche à vide.  2, record 11, French, - m%C3%A9thode%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20double%20soudure%20sous%20pression

Record number: 11, Textual support number: 2 OBS

Double soudure: Modalité d'assemblage comportant la réalisation simultanée de deux joints parallèles, effectués en soudure automatique et séparés par une zone non soudée. Ce canal central sert généralement à faire des tests d'étanchéité du joint, sous pression.  2, record 11, French, - m%C3%A9thode%20de%20contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20double%20soudure%20sous%20pression

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 CONT

Seam Testing Methods. The testing of seams after they have been made is critically important since it is usually the last chance for evaluation before the liner is covered and used. There are a number of procedures available which have applicability on different geomembranes.... In each of these methods the goal is to check 100% of all seams. Electronic methods are the newest of the methods used to evaluate seam integrity.  1, record 12, English, - seam%20testing

Record 12,  Textual support,  French

Record number: 12, Textual support number: 1 CONT

Contrôle d'étanchéité de soudure sur [géo]membrane bitumineuse au moyen d'une cloche à vide.  1, record 12, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure

Record number: 12, Textual support number: 1 OBS

Joint: Zone de liaison entre lés, nappes (ou panneaux) [ de géomembranes].  1, record 12, French, - contr%C3%B4le%20d%27%C3%A9tanch%C3%A9it%C3%A9%20de%20soudure

Record 12,  Textual support,  Spanish

Record 13,  Textual support,  English

Record number: 13, Textual support number: 1 CONT

Seam Strength. The joining of geomembrane panels together results in a seam which is often significantly weaker than the geomembrane itself. This is particularly true of seams made in the field versus those made in the fabrication factory, where quality control can be exercised more rigorously. To determine the strength of a geomembrane seam, two types of tests are common : sheer and peel. In both types a representative specimen(or specimens) is taken across the seam and placed in a tensile testing machine.  2, record 13, English, - seam%20strength

Record 13,  Textual support,  French

Record number: 13, Textual support number: 1 OBS

[Résistance de la liaison:] L'assemblage par couture est le plus fiable. Il peut être exécuté directement sur le chantier à l'aide de machines à coudre portatives. Dans ce but, les bandes de géotextile à assembler présenteront un chevauchement d'environ 0.10 m, qui suffit pour assurer la continuité du géotextile. L'assemblage par couture est le seul qui convient lorsque la fonction majeure du géotextile est de renforcer. La liaison doit alors être de résistance au moins égale à celle du géotextile.  2, record 13, French, - r%C3%A9sistance%20de%20la%20liaison

Record number: 13, Textual support number: 2 OBS

[Résistance du joint:] Joint: Zone de liaison entre lés, nappes (ou panneaux). (...) Couvre-joint: Bande de géomembrane; mise en place par collage ou soudage, sur un joint, et destinée à en renforcer la solidité et/ou l'étanchéité.  3, record 13, French, - r%C3%A9sistance%20de%20la%20liaison

Record 13,  Textual support,  Spanish

Record 14,  Textual support,  English

Record number: 14, Textual support number: 1 OBS

Seam Testing Methods... Electric sparking is an old technique used to detect pinholes in thermoplastic liners. The method uses a high-voltage... current and any leakage to ground(through an unbonded area) will result in sparking. This method is not very sensitive to overlapped seams of the type generally used in liners and is used only rarely for this purpose.  1, record 14, English, - electric%20sparking%20seam%20test

Record 14,  Textual support,  French

Record number: 14, Textual support number: 1 OBS

Pendant la pose du géotextile, on contrôlera : l'orientation et la disposition des nappes, la bonne exécution des assemblages, en particulier le sens et la longueur de recouvrement des nappes, les dispositions prises contre le soulèvement des nappes par le vent (...)  2, record 14, French, - essai%20d%27assemblage%20%C3%A0%20l%27%C3%A9tincelle%20%C3%A9lectrique

Record number: 14, Textual support number: 2 OBS

Electric spark/étincelle électrique.  3, record 14, French, - essai%20d%27assemblage%20%C3%A0%20l%27%C3%A9tincelle%20%C3%A9lectrique

Record 14,  Textual support,  Spanish

Record 15,  Textual support,  English

Record number: 15, Textual support number: 1 CONT

Seam Testing Methods... The air lance method uses a jet of air at approximately 50 lb/in. ² pressure coming through an orifice of 3/16 in. diameter. It is directed beneath the upper edge of the overlapped seam to detect unbonded areas.... The method works best on relatively thin flexible geomembranes....  1, record 15, English, - air%20lance%20method

Record number: 15, Textual support number: 1 OBS

Air lance: A device used to test, in the field, the integrity of field seams in plastic sheeting. It consists of a wand or tube through which compressed air is blown.  2, record 15, English, - air%20lance%20method

Record 15,  Textual support,  French

Record number: 15, Textual support number: 1 OBS

Lance à air: Appareil utilisé sur le chantier pour vérifier l'étanchéité des joints dans les feuilles de plastique. Il consiste en un tube à travers lequel on souffle de l'air comprimé.  2, record 15, French, - m%C3%A9thode%20de%20la%20lance%20%C3%A0%20air

Record 15,  Textual support,  Spanish

Record 16,  Textual support,  English

Record number: 16, Textual support number: 1 OBS

Seam Testing Methods... The air lance method uses a jet of air at approximately 50 lb/in. ² pressure coming through an orifice of 3/16 in. diameter. It is directed beneath the upper edge of the overlapped seam to detect unbonded areas.... The method works best on relatively thin flexible geomembranes....  1, record 16, English, - air%20lance%20seam%20test

Record number: 16, Textual support number: 2 OBS

Air lance: A device used to test, in the field, the integrity of field seams in plastic sheeting. It consists of a wand or tube through which compressed air is blown.  2, record 16, English, - air%20lance%20seam%20test

Record 16,  Textual support,  French

Record number: 16, Textual support number: 1 OBS

Lance à air: Appareil utilisé sur le chantier pour vérifier l'étanchéité des joints dans les feuilles de plastique. Il consiste en un tube à travers lequel on souffle de l'air comprimé.  2, record 16, French, - essai%20d%27%C3%A9tanch%C3%A9it%C3%A9%20%C3%A0%20la%20lance%20%C3%A0%20air

Record 16,  Textual support,  Spanish