Jiangxi Yuan Ce Engineering Testing Co., Ltd.

Jiangxi Yuan Ce Engineering Testing Co., Ltd. was established in Xiaolan Economic Development Zone in December 2019. The company is a technology service enterprise featuring comprehensive civil engineering technical services, with engineering quality testing, appraisal, and technical research as its core. The company has established a high-tech central laboratory, and the comprehensive technical service capabilities of the laboratory cover: building construction engineering, highway engineering, waterway engineering, bridge and tunnel engineering, municipal engineering, railway engineering, urban rail and airport construction engineering, fully meeting the technical commissioning needs of construction units, supervision units, consulting units, construction units, and design units.
After nearly a year of preparation and improvement, the company's central laboratory has passed two qualification reviews by provincial competent authorities (Waterway Materials Comprehensive Class C, Waterway Structure Comprehensive Class B), among which Waterway Structure Class B is the *** in Jiangxi for private enterprises. Currently, the company's central laboratory has passed 50 qualification parameters for Waterway Materials Comprehensive Class C and 32 qualification parameters for Waterway Structure Class B.
The specific qualification parameters for Waterway Materials Comprehensive Class C are as follows: Soil: particle composition, compaction test (*** dry density, * optimum moisture content), natural moisture content, natural density, Atterberg limits (liquid limit, plastic limit), unconfined compressive strength; Aggregate: particle gradation, mud content (stone powder content), clay lump content, moisture content, apparent density, bulk density (loose, compact), soundness, elongated and flat particles content, crushing index, soft particles content, chloride content, methylene blue value; Cement: soundness, setting time, water requirement for standard consistency, fineness, specific surface area, mortar fluidity, density; Cement concrete: consistency, cube compressive strength, apparent density, bleeding rate, flexural strength, ordinary concrete mix design; Mortar: consistency, water retention, cube compressive strength, apparent density, bleeding rate, splitting tensile strength, mix design; Inorganic binder stabilized materials: cement or lime dosage; Steel and connection joints: dimensions, weight deviation, yield strength, tensile strength, elongation after fracture, *** total elongation, bending performance; Concrete structure: strength, carbonation depth, reinforcement cover thickness.
The specific qualification parameters for Waterway Structure Class B are as follows: Concrete structure: concrete strength, carbonation depth, component dimensions, reinforcement position, cover thickness, concrete defects, reinforcement corrosion status, chloride ion content in concrete; Concrete and reinforcement surface anti-corrosion: dry film thickness of concrete anti-corrosion coating, coating adhesion, steel component dimensions, natural corrosion potential, protection potential, coating thickness, steel thickness, coating film adhesion, surface roughness; Structure and components: bearing capacity, structure and component dimensions, static stress (strain), static displacement, static deflection, dynamic stress (strain), dynamic displacement, dynamic deflection; Foundation piles and underground diaphragm walls: bearing capacity of foundation piles, unconfined compressive strength of pile concrete, integrity of foundation piles, hole-forming quality of bored cast-in-place piles, trench-forming quality of underground diaphragm walls; Foundation and foundation pit: foundation bearing capacity, pile integrity in composite foundation, unconfined compressive strength of pile in composite foundation, uniaxial compressive strength of rock.
The company's central laboratory will continue to apply for highway (Comprehensive Class B) and building construction laboratory qualifications (witness sampling, main structure, foundation) in the next step, continuously improving the company's comprehensive technical service level.