一、Product Introduction

The aggregate strength testing apparatus (instrument) complies with the JTG3432-2024 standard, designed to evaluate the performance of crushed stone or gravel under repeated saturation cycles with sodium sulfate solution and subsequent drying, ensuring it withstands crystallization pressure without significant damage or strength reduction. This method measures the stability (or rock strength) of aggregates.

二、Technical Parameters

1、Container	55L stainless steel container.
2、Coarse aggregate three-legged basket	The net basket has a diameter of 100mm, a height of 150mm, and three holes with a diameter of 2.36mm.The net basket has a diameter of 150mm, height of 150mm, and a hole diameter of 2.36mm (1 unit).The net basket has a diameter of 250mm, a height of 250mm, and a hole diameter of 2.36mm (1 unit).
3、Fine aggregate three-legged basket	Each set consists of two pieces: a 70mm outer diameter and 70mm height basketball net, both made of 0.15/0.315/0.6/1.18 stainless steel.
4、Power supply voltage	220V
5、heating power	1500W
6、refrigerating capacity	1000W
6、Temperature range to maintain	21±1C
7、Number of ascents and descents	25 times
8、The instrument can automatically control and record the above experiments, such as heating, constant temperature, circulation times and insulation time.