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​Tel: +86-25-8472 1577 / 8472-1579
Email: info@tbtscietech.com  /  toni_gu@tbt-scietech.com
Falling weight deflectometer
Asphalt Binder Tester


Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd. is a professional supplier in China, specializing in pavement equipment. Our main products including falling weight deflectometer, asphalt binder tester, kinematic viscometer, retroreflectometer, road surface profiler, etc. 
This retroreflectometer is a portable on-site measuring instrument, used for measuring the retroreflection characteristic of road marking.
The Retroreflectometer TBTTSR-1 is a portable, rechargeable battery-powered precision measuring instrument for the determination of night visibility (coefficient of retroreflection RA and R’) of traffic signs and safety garments.
Falling Weight Deflectometer (FWD) is one of the most advanced non-destructive testing equipment of road surface strength in the world. It has become a hot topic in the field of road in the world to measure dynamic deflection of road surface and calculate the rebound modulus of road surface.
This machine consists of hardware(modular components) and software; The system adopts laser sensor, accelerometer and DMI which allows the testing for IRI, RN, RQI, SMTD etc., quantity of sensors can be from single upto 17pcs according to customer’s requirement to achieve different function; Ideal for both highway and airport; Our standard configure is 13pcs sensors;
Determine absolute viscosity of Newtonian liquids and apparent viscosity of Non-Newtonian liquids
It is designed for obtain high quality core drilling samples with additional functions especially for asphalt mixture specimen request. The instrument is small in size, easy to operate.
This device is for checking anti-skid performance of roads ad airport pavement, can be used both in the lab ad in-situ. Accords to BS, EN standard;
Axle Scale is a weighing instrument for measuring the weight of eachwheel axle of a car, in order to protect the pavement quality away from over weight damage; This model adopts touch screen with high quality, very popular exported to US and other countries.
TBTRMR-1J Road Marking Retroreflectometer is a portable on-site measuring instrument, used for measuring the retroreflection characteristic of road marking. This instrument is to simulate the brightness of road marking that can be seen by the driver under the illumination of motor vehicles at night, and the measured parameter is the coefficient of retrorefection brightness at night in daytime, namely, RL & QD value.


Crossing mountains and seas, sets of TBT's advanced testing equipment arrives in the university laboratories in Hong Kong, Australia and Middle East,
serving the university's civil engineering laboratories and materials research institutions.


falling weight deflectometer

Leading Supplier of Pavement Testing Equipments

TBT company is a global supplier and has built its business worldwide; Since its inception, TBT has continued to enhance its products, service and all relevant business activities! Our products includes asphalt testing equipment, concrete testing equipment, cement testing equipment, metal testing machine, non-metal testing equipment, soil testing equipment, universal testing machines, etc. We can provide complete set of testing equipment for your engineering projects such as highway, railway, cement factory, bridge and building.
How to use the electric density gauge?
The electric density gauge strictly enforces national standards and is an instrument for measuring the density and compaction of hot mix asphalt pavement. Electric density gauge adopts electromagnetic induction technology instead of nuclear source radiation method, low cost, high safety, users do not have to worry about the cumbersome EIA application, time-consuming training, and harsh transportation control. With simple calibration, high accuracy, repeatability, and touch screen operation, the electric density gauge allows users to complete relevant operational training and master the techniques of on-site quality inspection in a short period. The electric density gauge can quickly measure the road separation, low density, uneven areas. Next is an introduction to the use and precautions of the Densitometer.
Retroreflectometer for road marking in rainy days
Retroreflectometer for road marking plays a very big role in our traffic inspection, because many road markings and so on have a very big impact on the traffic, so it is necessary to use the measuring device to inspect the road markings during rainy days. Here we will look at the different features of the retroreflectometer for road marking used on rainy days and the introduction of moisture-proof methods.
Universal testing machine sensor installation of attention
As an indispensable part of the universal testing machine, the role of the sensor, I believe I do not need to say, we all know the first, it is a kind of physical quantities, chemical quantities, and other information that can be felt by certain rules into a device to facilitate the measurement and transmission of signals, therefore, for the installation of the sensor, we need to pay special attention to the following matters.
Universal testing machine shutdown causes
We use the universal testing machine in the process, there may be a sudden shutdown of the equipment, when encountering this situation, the user should learn to analyze the causes of the failure, and according to the specific reasons to seek solutions. Today I will briefly analyze the causes of the machine's downtime and the corresponding solutions, including the introduction of maintenance and repair methods.

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​Tel: +86-25-8472-1577 / 8472-1579
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Email: info@tbtscietech.com
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