Reference :

• NT-A0060 Los Angeles Abrasion and Fragmentation Testing Machine for Aggregates

The Los Angeles abrasion machine is a fundamental device used to evaluate the resistance of aggregates to wear and fragmentation. It is designed to comply with major international standards for material durability testing.

The unit can be easily configured to meet ASTM and EN standards, with adjustable settings for the required number of rotations.

The device consists of a cylindrical steel drum with an inner diameter of 711 mm and an internal length of 508 mm, coupled with an electronic control unit. The drum operates at a speed of 31–33 rpm. The equipment features an automatic counter that stops the machine once the preset number of cycles has been completed. A collection tray is included for easy sample removal.

In accordance with EN standards, the abrasive ball set and the 1.6 mm sieve must be ordered separately. For AASHTO and ASTM standards, the abrasive ball set and the 1.7 mm mesh sieve must also be ordered separately.

Reference :

• NT-A0230 Micro-Deval Test Apparatus

General description

The NT-A0230 Micro-Deval Test Apparatus is a laboratory testing device designed to determine the resistance to wear of aggregates sized between 25 and 50 mm. The test is performed in accordance with international standards to assess the durability of materials used in applications such as road construction and railway ballast.

Principle and operation

The apparatus simulates aggregate wear by abrasion in a wet environment inside rotating drums. It can operate with:

• 4 drums of Ø200 × 154 mm
• or 2 drums of Ø200 × 400 mm

The rotation speed is set to 100 ± 5 rpm. The unit is equipped with a user-adjustable digital revolution counter and automatically stops at the end of the test cycle.

Reference :

• NT-A5160 Böhme Abrasion Testing Machine

Product Description

The NT-A5160 Böhme Abrasion Testing Machine is designed to determine the abrasion resistance of concrete products and natural stones used for both indoor and outdoor paving applications.

Operating Principle

The machine is equipped with an abrasive grinding wheel of approximately 750 mm diameter, a removable 30 kg test weight, and a clamping device to securely hold the specimen during testing.

Reference :

• NT-A0160 Vertical Abrasion Tester for Natural Stones and Concrete Tiles

General Description

The Vertical Abrasion Tester is designed to determine the resistance to wear and abrasion of natural stones, concrete tiles, and paving products used in indoor and outdoor applications. The test simulates real-life wear conditions by subjecting the specimen to rotating abrasive forces under controlled pressure.

Reference :

• NT-D5920 – 50-Liter Laboratory Oven
• NT-D5925 – 120-Liter Laboratory Oven
• NT-D5930 – 250-Liter Laboratory Oven
• NT-D5935 – 500-Liter Laboratory Oven
• NT-D5940 – 700-Liter Laboratory Oven

General-Purpose Laboratory Oven

General-purpose laboratory ovens are designed for drying and testing materials such as soil, aggregates, concrete, and asphalt mixtures.

Samples are typically dried at temperatures ranging from 60°C to 200°C, with the most commonly used temperature range being 100°C to 110°C.

Available Capacities

This range of laboratory ovens is available in several capacities to meet different laboratory requirements:

• 50 liters
• 120 liters
• 250 liters
• 500 liters
• 700 liters

Standards

TS EN 932-5, 1097-5, ASTM C127, C136, BS 1377:1

Reference :

• NT-D5500 – 3 litres, 1100°C, 2 kW
• NT-D5505 – 6 litres, 1100°C, 2 kW
• NT-D5510 – 6 litres, 1200°C, 2 kW
• NT-D5515 – 6 litres, 1200°C, 2 kW, Programmable operating temperature and heating time
• NT-D5520 – 5 litres, 1600°C, 2 kW

The Noustest NT-D5500 series muffle furnaces are designed to provide reliable performance and long-term operation in laboratory environments. They are particularly suitable for testing and applications requiring controlled high-temperature heating, including applications involving construction materials.

The series includes several models with maximum operating temperatures ranging from 1,100 °C to 1,600 °C, providing solutions for a wide range of laboratory requirements. The maximum temperature can be reached in approximately 65 minutes.

Available Models

NT-D5500

• Maximum temperature: 1,100 °C
• Capacity: 3 liters
• PID digital temperature control
• Power: 2 kW
• Power supply: 220–240 V, 50–60 Hz, single-phase

NT-D5505

• Maximum temperature: 1,100 °C
• Capacity: 6 liters
• PID digital temperature control
• Power: 2 kW
• Power supply: 220–240 V, 50–60 Hz, single-phase

NT-D5510

• Maximum temperature: 1,200 °C
• Capacity: 6 liters
• PID digital temperature control
• Power: 2 kW
• Power supply: 220–240 V, 50–60 Hz, single-phase

NT-D5515

• Maximum temperature: 1,200 °C
• Capacity: 6 liters
• PID digital temperature control
• Programmable operating temperature and heating time
• Power: 2 kW
• Power supply: 220–240 V, 50–60 Hz, single-phase

NT-D5520

• Maximum temperature: 1,600 °C
• Capacity: 5 liters
• PID digital temperature control
• Power: 5.2 kW
• Power supply: 380 V, 50–60 Hz, three-phase

References :

• NT-CE5880A – Automatic cement mixer, 5-litre capacity, ASTM version.
• NT-CE5880E – Automatic cement mixer, 5-litre capacity, EN version.
• NT-CE5885A – Manual cement mixer, 5-litre capacity, ASTM version.
• NT-CE5885E – Manual cement mixer, 5-litre capacity, EN version.

The NT-CE5880 is a laboratory mortar mixer designed for the preparation and mixing of cement and mortar for laboratory testing, quality control, research, and development applications. Developed to meet high standards of quality, reliability, and repeatability, the mixer complies with applicable international standards and is suitable for a wide range of construction-material testing applications.

Operating Principle

The mixer features a planetary mixing mechanism, in which the mixing paddle rotates around its own axis while simultaneously orbiting around the mixing bowl. This combined movement provides efficient and homogeneous mixing of the materials.

The bidirectional mixing action ensures optimum mixture homogeneity and excellent test repeatability, making the equipment particularly suitable for standardized laboratory testing.

Key Features

Programmable Mixing Cycles

The microprocessor-based control system allows users to select and program different mixing cycles according to the requirements of the following standards:

• TS EN 196-1
• TS EN 196-3
• ASTM C305

This programming capability enables standardized testing with precise and repeatable mixing parameters.

References :

NT-S2020 – Manual Liquid Limit Device

Manual mechanical model equipped with a counter for registering the number of cup blows.

NT-S2120 – Motorized Liquid Limit Device

Motorized model designed to provide a uniform operating speed and improved test repeatability.

NT-S2125 – ASTM Metal Grooving Tool

Metal grooving tool designed for soil sample preparation for liquid limit testing in accordance with the applicable ASTM requirements.

The Liquid Limit Device is used to determine the moisture content at which a clay soil changes from a plastic state to a liquid state. The liquid limit is defined as the moisture content at which the two parts of a soil sample, separated by a standardized groove, come together over a specified distance after 25 blows of the cup, following a standardized testing procedure.

The NT-S2000 Series includes manual and motorized liquid limit devices designed for soil characterization testing in laboratories. The equipment is engineered to provide reliable and repeatable test results while complying with the requirements of major international standards.

Main Features

• Removable brass cup.
• Cup height adjustment system.
• Mechanical blow counter.
• Metal grooving tool.
• Hard plastic base compliant with applicable standards.
• Designed for liquid limit determination testing of soils.