It has been widely used in various projects under construction and meets the requirements of relevant codes and standards in the industry.

Figure 1 Inspection and test site Figure 2 Physical picture of precast pier column The multifunctional nondestructive testing instrument for the quality of precast structure produced by our company uses the impact echo method to test the quality of grouting compactness of precast structure sleeve, which can be applied to precast buildings, bridges, subway stations and other structures.

Magnetic Steel Chamfer

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This equipment is used for grouting compactness of sleeve and grout anchor; Defects in the new and old joint surfaces of composite plates and composite beams; Internal defects and surface hollowing (stripping) of precast parts (shear walls, precast slabs, precast beams, precast stairs, precast balconies, etc.); The hollow of precast concrete filled steel tube and the internal concrete quality problems; Concrete cracks and other detection items.

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On December 29, at the invitation of the customer, our company’s technicians went to Chongqing to carry out the test of the grouting compactness of the pier sleeve of the precast base of a suburban railway project.

The cast steel structure quality multi-function nondestructive testing instrument (LT-MQCT) has good repeatability and is subject to small human factors; Simple operation: high intelligence, simple operation and high efficiency; It can quickly and accurately locate and judge the type of grouting defect; The main components are imported from European and American countries, with high reliability, high precision and strong durability.

Standard specifications: Technical Standard for Testing of Building Structures (GB/T50334-2019), Technical Standard for Testing of Fabricated Residential Buildings (JGJ/485-2019), Technical Specification for Testing Concrete Subsidence by Impact Echo Method (JGJ/T411-2017), Technical Standard for Testing of Fabricated Concrete Structures (DBJ/15536-2021) If you have testing needs and problems, you can follow the official website or official account of Sichuan Lutong Testing Technology Co., Ltd.

Our company uses the impact-echo method to detect the compactness of sleeve grouting, which is characterized by reliable accuracy, high efficiency, good stability and repeatability, and has been unanimously recognized by the personnel of relevant units.

The project adopts the precast integral structure design, absorbs and integrates the characteristics of segmental assembled piers and integrally assembled piers, and carries out innovative research in combination with the construction conditions of Chongqing railway, realizing the lightweight of structure, technology and equipment, and enhancing the adaptability of precast pier structure in mountainous cities.

The precast pier structure adopts sleeve grouting connection, so the joint quality control of sleeve grouting compactness is particularly critical.