产品介绍

1. Applicable scope:

The NJ115 pressure cylinder (cylinder pressure method mortar strength tester) is suitable for estimating the strength of masonry mortar in sintered ordinary brick masonry, but it is not suitable for testing the compressive strength of masonry mortar subjected to fire and environmental erosion. It is developed and produced in accordance with Standard GB/T 50315-2011.

2. Detection parameters:

Take mortar samples from on-site brick walls, conduct cylinder pressure load tests in the laboratory, test the cylinder pressure ratio, and then convert it into mortar strength. It has the characteristics of simple operation, practical convenience. It is currently a relatively economical mortar testing tool.

3.Main technical parameters:

1. Inner diameter: 115mm

2. Cylinder depth: 102mm

3. Wall thickness: 5mm

4. Cover height: 90mm

5. Compression cover: Φ 113mm

3. Other auxiliary testing equipment:

50-100KN compression testing machine or pressure testing machine; Sand shaker; Drying oven; Cylinder pressure method pressure bearing cylinder; Standard sand and gravel sieve with apertures of 5mm, 10mm, and 15mm (including screen covers and pan); Cement jumping table; A  balance with a weighing capacity of 1000g and a sensitivity of 0.1g.

4. MortarTesting variety and strength range 

1. Cement mortar prepared with medium and fine sand, with a mortar strength of 2.5-20Mpa;

2. Cement lime mixed mortar (hereinafter referred to as mixed mortar) prepared with medium and fine sand, with a mortar strength of 2.5-15.0Mpa;

3. Cement fly ash mortar (hereinafter referred to as fly ash mortar) prepared with medium and fine sand, with a mortar strength of 2.5-20Mpa;

4. Cement lime mixed mortar and cement mortar (hereinafter referred to as stone powder mortar) prepared by mixing limestone powder sand with medium and fine sand, with a mortar strength of 2.5-20Mpa.