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 road

Info

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
Application number
FR7536795A
Other languages
French (fr)
Other versions
FR2334096B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
M & O Applic Mec Optique
Original Assignee
M & O Applic Mec Optique
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by M & O Applic Mec Optique filed Critical M & O Applic Mec Optique
Priority to FR7536795A priority Critical patent/FR2334096A1/en
Publication of FR2334096A1 publication Critical patent/FR2334096A1/en
Application granted granted Critical
Publication of FR2334096B1 publication Critical patent/FR2334096B1/fr
Granted legal-status Critical Current

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.
FR7536795A 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 Granted FR2334096A1 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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