China Testing & Certification International Group Co., Ltd. (CTC, Stock Code 603060) originated from the testing and certification business of China Building Materials Academy in the 1950s. After 70 years of unremitting efforts and persistent pursuit, the company has formed five business categories: detection and testing, certification and evaluation, testing instruments and intelligent manufacturing, measurement and calibration, scientific research and technical services, committed to providing customers with technical services and comprehensive solutions of detection and testing, certification and evaluation, appraisal, consultation, training, and instruments and equipment in fields of quality, environmental protection, green, safety, health, and energy conservation.

Road engineering testing is a core technical method that runs through the entire life cycle of roads. Using scientific methods and standards, it tests, monitors, and evaluates the quality, performance, and safety of subgrades, pavements, raw materials, and ancillary structures. It is a key link in ensuring road structural safety, driving comfort, and durable service.
Asphalt Mixture Pavement
Base and Subbase Courses
Earth Subgrade
Drainage Pipeline Engineering
Cement Concrete Pavement
Road Engineering Field
Traffic Safety Facilities
Geometric Dimensions
Degree of Compaction
Roughness (Evenness)
Bearing Capacity
Skid Resistance
Water Permeability
Unconfined Compressive Strength
Elastic Modulus
Plate Load Test
Standard Penetration Test (SPT)
Dynamic Penetration Test (DPT)
Cone Penetration Test (CPT)
Leaktightness Test (Water / Air)
Cement Concrete Strength
Subgrade and Pavement Damage/Defects
Coefficient of Subgrade Reaction
Photometric Performance of Signs and Markings
Asphalt Mixture Pavement
Items: Geometric dimensions, Degree of compaction, Roughness, Bearing capacity, Skid resistance, Water permeability
Standards: JTG 3450-2019, MH/T 5110-2015, DG/TJ 08-2265-2018
Base and Subbase Courses
Items: Geometric dimensions, Degree of compaction, Roughness, Bearing capacity, Unconfined compressive strength
Standards: JTG 3450-2019, MH/T 5110-2015, JTG 3441-2024
Earth Subgrade
Items: Plate load test, Benkelman beam deflection test, Degree of compaction
Standards: JTG 3450-2019, MH/T 5110-2015, JTG 3450-2019
Drainage Pipeline Engineering
Items: Plate load test, Standard penetration test (SPT), Dynamic penetration test (DPT), Cone penetration test (CPT), Ring knife method, Sand cone method, Steel probe method, Water stoppage test (water/air tightness)
Standards: DGJ 08-11-2018, JGJ 79-2012, DG/TJ 08-218-2017, JGJ 340-2015, GB 50007-2011, GB/T 50123-2019, GB 50021-2001(2009), GB 50202-2018, GB 55003-2021, JGJ 79-2012, JTS/T 242-2020, CJJ 56-2012, CJJ 1-2008, JTG 3223-2021, TB 10018-2018, DGJ 08-11-2018, DG/TJ 08-40-2010, DG/TJ 08-2189-2015, DG/TJ 08-37-2023, JTG 3450-2019, DG/TJ 08-2110-2025, GB 50268-2008, DG/TJ 08-308-2018, DG/TJ 08-2354-2021
Cement Concrete Pavement
Items: Geometric dimensions, Roughness, Skid resistance
Standards: JTG 3450-2019, MH/T 5110-2015
Road Engineering Field
Items: Concrete strength, Pavement damage/defects, Coefficient of subgrade reaction
Standards: JTG 3450-2019, MH/T 5110-2015, TB 10102-2023
Traffic Safety Facilities
Items: Photometric performance of signs/markings, Thickness, Skid resistance, Coating thickness (anti-corrosion), Overall dimensions, Installation height/distance/angle, Post verticality, Post embedment depth
Standards: JT/T 690-2022, GB/T 18833-2012, JTG F80/1-2017, GB/T 24717-2009, GB/T 16311-2024
In the field of road engineering testing, CTC Shanghai Co., Ltd. possesses outstanding full-chain technical and service advantages: Relying on comprehensive highway engineering qualifications and full-capability municipal road testing, it can cover all types of materials and field indicators for subgrades, base courses, asphalt mixtures, cement concrete, pavement structures, traffic safety facilities, etc.; equipped with advanced equipment such as intelligent road detection vehicles, laser profilometers, rut testers, and friction coefficient testers, enabling rapid, high-precision, non-destructive testing, significantly improving the efficiency of acceptance and monitoring for municipal roads, urban expressways, and major arterials; deeply engaged in road engineering in Shanghai and East China for many years, familiar with local acceptance standards and regulatory requirements. It provides full-cycle one-stop technical support for road construction quality control, completion acceptance, and operational health monitoring, with authoritative and traceable test data, effectively ensuring road engineering durability and driving safety.
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