The Polished Stone Value (PSV) Specimen Holder is a testing accessory designed to securely fix specimens and work together with a British Pendulum Tester for friction coefficient measurement. It is mainly used in highway engineering, playing an important role in the Polished Stone Value (PSV) testing process of aggregates. The holder ensures the stability and accurate positioning of specimens during testing, thereby improving the reliability and repeatability of test results.

Polished Stone Value (PSV) Specimen Holder

Model:TD321-MGT

I. Product Introduction

The relevant standards for the Polished Stone Value (PSV) Specimen Holder are mainly based on JTG E42-2005 Test Methods of Aggregate for Highway Engineering, which specifies the test methods and procedures for determining the Polished Stone Value (PSV) of coarse aggregates.

Reference / Applicable Standards:

BS EN 1097-8 – Tests for Mechanical and Physical Properties of Aggregates – Part 8: Determination of the Polished Stone Value

BS 812-114 – Testing Aggregates – Method for Determination of the Polished Stone Value

EN 1097-8 – Tests for Mechanical and Physical Properties of Aggregates – Part 8: Determination of the Polished Stone Value

II. Operating Method

First, place the specimen into the fixing groove of the platform and ensure that the pendulum slider of the British Pendulum Tester can slide smoothly over the specimen surface. During the test, the slider should be positioned at the center of the specimen wheel track, and the sliding direction of the pendulum head should be consistent with the running direction of the rubber wheel on the polishing machine during the polishing process. This design ensures the stability of the specimen during testing and improves the accuracy and reliability of test results.

III. Features

1. Stable Specimen Fixing Structure

The specimen holder adopts a precision-designed fixing structure to securely position the polished aggregate specimens, preventing movement or displacement during friction testing and ensuring reliable test conditions.

2. High Compatibility

Designed for use with the British Pendulum Tester, this holder is suitable for Polished Stone Value (PSV) testing of coarse aggregates and provides stable support for different specimen types used in highway engineering laboratories.

3. Improved Testing Accuracy

By maintaining the correct specimen position and sliding path of the pendulum slider, the holder minimizes testing errors caused by specimen movement, improving the repeatability and accuracy of friction coefficient measurements.

4. Durable and Practical Design

Manufactured from high-quality materials, the holder features a robust structure, excellent wear resistance, and long service life, making it suitable for frequent laboratory testing applications.

5. Easy Operation and Maintenance

The simple structural design allows quick installation and specimen replacement, improving testing efficiency and reducing operational difficulty for laboratory technicians.

IV. Applications

The Polished Stone Value (PSV) Specimen Holder is widely used in:

Highway engineering laboratories;

Aggregate testing laboratories;

Road material research institutes;

Quality inspection centers;

Universities and scientific research organizations.

It is an essential accessory for evaluating the skid resistance performance of aggregates and supporting the selection of high-quality pavement materials for road construction.