FR2334096A1 - Portable penetrometer for investigating road surfaces - has separate tripod carrying pile driver and guide for element driven into surface of road - Google Patents
Portable penetrometer for investigating road surfaces - has separate tripod carrying pile driver and guide for element driven into surface of roadInfo
- Publication number
- FR2334096A1 FR2334096A1 FR7536795A FR7536795A FR2334096A1 FR 2334096 A1 FR2334096 A1 FR 2334096A1 FR 7536795 A FR7536795 A FR 7536795A FR 7536795 A FR7536795 A FR 7536795A FR 2334096 A1 FR2334096 A1 FR 2334096A1
- Authority
- FR
- France
- Prior art keywords
- road
- guide
- pile driver
- investigating
- road surfaces
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/48—Investigating hardness or rebound hardness by performing impressions under impulsive load by indentors, e.g. falling ball
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The portable penetrometer for investigating road surfaces comprises two parts: a tripod (10) carries a pair of collars (17) and (20) which receive a graduated cylinder (24) for guided vertical movement; and a quick member (34) which guides a rod (12) as it is driven vertically into the ground along with an irretrievable member. The cylinder is closed at the bottom and contains a freely vertically movable mass connected to a handle (28) to act as a pile driver. Level adjustors (30) and a bubble gauge (23) are employed to ensure the axis of the tripod is vertical. Similarly level adjustors (35) and bubble gauge (48) are employed to ensure the guide passage afforded by the guide member is also vertical. In use the mass is raised to a reference height in tube (24) and allowed to drop under gravitational force to drive the rod into the ground by increments measured on scale.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7536795A FR2334096A1 (en) | 1975-12-02 | 1975-12-02 | Portable penetrometer for investigating road surfaces - has separate tripod carrying pile driver and guide for element driven into surface of road |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7536795A FR2334096A1 (en) | 1975-12-02 | 1975-12-02 | Portable penetrometer for investigating road surfaces - has separate tripod carrying pile driver and guide for element driven into surface of road |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2334096A1 true FR2334096A1 (en) | 1977-07-01 |
FR2334096B1 FR2334096B1 (en) | 1978-09-22 |
Family
ID=9163182
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7536795A Granted FR2334096A1 (en) | 1975-12-02 | 1975-12-02 | Portable penetrometer for investigating road surfaces - has separate tripod carrying pile driver and guide for element driven into surface of road |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2334096A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5390535A (en) * | 1994-03-25 | 1995-02-21 | Detroit Testing Laboratory, Inc. | Drop test device |
EP1162445A2 (en) * | 2000-06-08 | 2001-12-12 | Universita degli Studi di Trento | Apparatus for nondestructive hardness testing by indentation |
FR2942877A1 (en) * | 2009-03-06 | 2010-09-10 | Bernard Bonnefoy | Angular deviation verification device i.e. test bar, for rods of penetrometer, has metal spacers and metal plates stacked in metal frame, where plates are numbered, and are marked horizontally to permit reading of angular deviation |
EP3575772A1 (en) * | 2018-05-28 | 2019-12-04 | Shimadzu Corporation | Hardness tester |
-
1975
- 1975-12-02 FR FR7536795A patent/FR2334096A1/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5390535A (en) * | 1994-03-25 | 1995-02-21 | Detroit Testing Laboratory, Inc. | Drop test device |
EP1162445A2 (en) * | 2000-06-08 | 2001-12-12 | Universita degli Studi di Trento | Apparatus for nondestructive hardness testing by indentation |
EP1162445A3 (en) * | 2000-06-08 | 2003-01-22 | Universita degli Studi di Trento | Apparatus for nondestructive hardness testing by indentation |
FR2942877A1 (en) * | 2009-03-06 | 2010-09-10 | Bernard Bonnefoy | Angular deviation verification device i.e. test bar, for rods of penetrometer, has metal spacers and metal plates stacked in metal frame, where plates are numbered, and are marked horizontally to permit reading of angular deviation |
EP3575772A1 (en) * | 2018-05-28 | 2019-12-04 | Shimadzu Corporation | Hardness tester |
Also Published As
Publication number | Publication date |
---|---|
FR2334096B1 (en) | 1978-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |