产品介绍

Product Introduction

1. Overview

The NJ-800B mortar penetration strength tester is a new in-situ non-destructive testing method that uses a specially designed measuring nail to penetrate into the mortar based on the negative correlation between the  nail penetrating depth of the mortar and the compressive strength of the mortar. The energy released by the working spring with a certain displacement is compressed, and the compressive strength of the mortar is converted by measuring the penetration depth of the measuring hole corresponding to the strength curve.

The NJ-800B type penetration mortar strength tester used in the penetration method for testing mortar compressive strength technology is designed and produced by Beijing Naijiu Weiye Technology Co., Ltd. Due to the unique internal control parameters of the product, it meets the testing requirements of the standard JGJ/T136-2001.

2. Main technical parameters

2.1. Penetration force of the penetrometer: 800 ± 8N;

2.2. Working stroke: 20 ± 0.10mm;

2.3. Dividing value of digital penetration depth measurement table: 0.01mm;

2.4. Length of measuring nail: 40 ± 0.10mm;

2.5. Measuring nail diameter: 3.5mm;

2.6. Measuring the taper of the nail tip: 45 °;

2.7. Length of measuring nail gauge groove: 39.5+0.10mm;

2.8. Operating environment temperature of the penetrometer: -4~40 ℃