Langrui LR-P40 Operating Instructions
LR-P40 Pull-off Tester
Operating Instructions
JINAN LANGRUI DETECTION TECHNOLOGY CO. ,LTD.
PREFACE
Your choice of the products made by Jinan Langrui Detection Technology Co., Ltd.( LANGRY) is greatly appreciated. We are committed to deliver you excellent products and satisfied sales services. Please carefully read the instructions prior to use.
1.The instructions are prepared to provide the correct and complete descriptions of related products and data. However, we do not guarantee that there are no errors or omissions. Therefore, we will not bear responsibilities for any resulting consequences.
2.LANGRY keeps the right of updating the instructions without prior notice.
3.LANGRY bears no responsibilities for possible losses from data deviation or incorrect testing conclusion arising from instrument failure and other errors.
4.When the instrument is put into operation, it means that you have carefully read and had full picture of all terms in the instructions, and you have fully agreed to all the terms in the instructions.
5.LANGRY will not bear responsibilities for all the signed agreements violating the statement during the sales and services process not involving LANGRY.
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Testing Standard
EN 1542-1999
Products and systems for the protection and repair of concrete structures - Test methods - Measurement of bond strength by pull-off;
EN 1015-12
Determination of adhesive strength of hardened rendering and plastering mortars on substrates;
EN 1348
Adhesives for tiles - determination of tensile adhesion strength for cementitious adhesives
BS 1881-207
Testing concreteRecommendations for the assessment of concrete strength by near-to-surface tests
ASTM D 4541
Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers
ASTM C 1583
Standard Test Method for Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension (Pull-off Method)
ASTM D 7234-05
Standard Test Method for Pull-Off Adhesion Strength of Coatings on Concrete Using Portable Pull-Off Adhesion Testers
ASTM D 7522
Standard Test Method for Pull-Off strength of Fiber reinforced Plastics Bonded to Concrete Substrates
JGJ110 Testing standard for adhesive strength of tapestry brick of construction engineering
JGJ126 Specification for construction and acceptance of tapestry brick work for exterior wall
JGJ144 Technical standard for external thermal insulation on walls
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1. Uses and Features
LR-P40 Pull-off Tester is used to test the bonding strength of building face brick and mosaics with walls or floors.
This instrument is a small hydraulic force measuring device. When testing the bonding strength of facing brick, it produces tension on the bonding material of facing brick through three-point counterforce support. When testing concrete, it USES the principle of post-install pull-out method and calculates the concrete strength by measuring the force needed to pull out and anchor solid inside concrete.The instrument is composed of perforating jack, hand pump, triangular chassis, force measuring device and other components. It has a one camera dual use, novel structure, small size, convenient operation and complete functions.
The oil pump of the tester is loaded manually, and the rocker lead screw does not need to be shaken out in advance. It has the characteristics of small driving torque, comfortable and reasonable swing direction and continuous and uniform loading. Using single chip microcomputer as the core intelligent data processor, the battery inside the machine can be charged,
It has the functions of full digital display, automatic zero clearing (it can eliminate the measurement error caused by the friction force in the hydraulic system), peak holding selection, storing 500 pieces of data and over range display.
2.Technical parameters
The maximum pulling force of detector is 40 kn
Chassis fulcrum inner diameter 120mm
The resolution of digital display is 0.01kN
Indication error ≤± 1% F.S
Weight (host) 4.3 kg
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