产品介绍

Product Introduction

1. Purpose

NJZY selective pressure method masonry mortar compressive strength tester is abbreviated as: selective pressure tester or local pressure tester. It is developed and produced in accordance with the standard JGJ/T 234-2011. It is a specialized instrument for testing the strength of masonry mortar. Its characteristic is that it can be directly tested on site or in a laboratory, without affecting the stress performance. It has the characteristics of easy detection, convenient operation, and high testing accuracy, and can meet the requirements of on-site quality control of masonry engineering and quality appraisal of old houses.

2. Technical parameters

1. Measurement range: 0-5000N

2. Stroke: ≥ 18mm

3. Power supply voltage: 5V

4. Head diameter: 10mm

5. Indication error: 1% of full scale

6. Display resolution: 1N

3. Structure and characteristics

The pressure selector is composed of reaction frame, force measuring system, round flat indenter,  leveling device, digital display reading system, loading handle, etc. The sensor is installed on the loading reaction frame, and the digital display reading system and the force sensor are connected with wires.

During work, place the pre taken mortar sample on the pressure head, and slowly rotate the handle of the pressure gauge clockwise by hand to move the lead screw towards the direction of the force sensor. When the loading head holds the mortar sample, a pressure load is generated. Then, slowly and evenly apply the load until the sample breaks. At this time, the intelligent digital pressure display will maintain the maximum load.