All
- All
- Product Management
- News and Information
- Introduction content
- Enterprise outlets
- Frequently Asked Questions
- Corporate Video
- Company Portfolio
Asphalt testing instruments have different sampling methods and sample storage methods.
The sampling procedure using asphalt testing equipment differs slightly between batch-mixed asphalt and poured-asphalt mixtures, as different sampling methods are required. Below, we’ll introduce these methods one by one: 1. Sampling during loading or unloading: When sampling during the loading or unloading process, take at least three evenly spaced samples at regular intervals. After thoroughly mixing these samples, collect a representative sample of the required quantity. Alternatively, each individual sample can be tested separately. 2. Sampling from an asphalt storage tank: Before sampling from an asphalt storage tank, the asphalt should first be heated and melted, then pumped through pipelines or via an asphalt pump into an asphalt heating pot before taking the sample. Asphalt instrument-based testing.
2015-05-20
Sharing the main technical specifications of the rotary compactor.
The gyratory compactor is a core instrument used in the design of asphalt mixtures. It is typically employed to prepare specimens for determining the mechanical and volumetric properties of hot-mix asphalt mixtures. Operating at a constant compaction pressure of 600 kPa, with a compaction angle of 1.25° and a rotation speed of 30 rpm, the gyratory compactor simulates the in-situ rolling conditions of road rollers. The compacted specimens produced by this machine closely resemble actual pavement surfaces in terms of density, aggregate distribution, and structural characteristics. The four-column frame of the gyratory compactor is exceptionally stable and robust. Vertical stress is measured using a load cell, allowing for precise control throughout the compaction process. The gyratory motion...
2014-04-09
Ten Key Points for Analyzing the Technical Parameters of a Rotary Compactor
We have certain reference standards for the rotary compaction tester technology. So, what are the standard specifications for these parameters? Let’s go through them one by one: 1. The outer diameter of the loading plunger on the rotary compaction tester is φ149.65 mm ± 0.10 mm and φ99.65 mm ± 0.10 mm. 2. The pressure range of the rotary compaction tester is continuously adjustable from 200 to 1000 kPa. 3. The vertical compressive stress applied by the loading device onto the base plane of the test mold is as follows: during the initial 0 to 5 tests, it should be 600 kPa ± 60 kPa; after more than five tests, the pressure should remain constant at 600 kPa ± 18 kPa. 4. Rotary
2014-04-09
Here are the five key features of the asphalt rotary compactor:
The asphalt rotary compactor is used to prepare specimens for determining the mechanical and volumetric properties of hot-mix asphalt mixtures. The compaction achieved by the asphalt rotary compactor can reach over 98% of the theoretical maximum density. During specimen preparation, the compaction process can be controlled in various ways, such as by adjusting the number of compaction passes or the specimen height. Moreover, the device can record the specimen height after each compaction pass, enabling a detailed assessment of the volumetric characteristics of the asphalt mixture. So, what are the key features of the asphalt rotary compactor? Let’s take a closer look! Here are the five major features of the asphalt rotary compactor:
1. The asphalt rotary compactor conforms to or exceeds all requirements set forth by the U.S. Federal Highway Administration (FHWA).
2014-04-04
Introduction to the Main Features of the Asphalt Rotary Compactor
Are you familiar with asphalt rotary compaction machines? Now, let’s take a look at some information about the asphalt rotary compaction machine—specifically, the YZM-150 model. Here are its key technical specifications:
1. Pressure range: Continuously adjustable from 100 to 1000 kPa.
2. Number of rotations: Forward rotation (based on the set compaction angle): 0 to 1000 cycles; Reverse rotation (with a compaction angle of 0°): 0 to 500 cycles.
3. Compaction angle range: From 0.5° to 2.0°, increasing in increments of 0.01°. (The machine is factory-calibrated internally to an angle of 1.16° ± 0.02°.)
2014-04-02