Digital intelligence controls quality! China Construction Eighth Engineering Division applies a 7-day concrete warning system

In order to solve the industry pain points of lagging quality control and late detection of hidden dangers in traditional precast concrete bridges, the beam yard project of the Phoenix Yellow River Bridge South Extension Project of China Construction Eighth Engineering Bureau has applied a self-developed 7d concrete intelligent warning system, using AI algorithms and full process digital monitoring technology, to build a precise quality control system for precast small box girders and bulk concrete projects along the entire line, realizing the transformation of concrete quality from “28 day post acceptance” to “pre prediction and closed-loop”, and using digital technology to build a solid foundation for the quality of municipal key projects.

Edge Lift Anchor

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Hardcore achievements! Concrete strength prediction reaches the top of the first zone! The civil engineering field is a god of war!

The main objective of this course is to help students establish a complete research approach for “concrete material problems – dataset construction – machine learning modeling – performance prediction – model interpretation – mix proportion optimization – paper expression”.

Coil Loop Insert

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Innovation driven ยท Mission Responsibility | Shandong Boshuo jointly builds a high-quality and long-term development path for the concrete

In the face of fierce market competition, the traditional extensive development path of competing for production capacity and low prices is difficult to sustain.

Enterprises can only accelerate their intelligent transformation, control costs, improve quality, win customers, get rid of homogeneous price competition, and build a long-term development foundation in the existing market.

Precast Lifting Clutch

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When building a house in rural areas, if you don’t want the house to crack or leak water, be sure to pay close attention to these 4 areas

When building a house in rural areas, if you don’t want the walls and roof to crack and leak water after moving in, you must pay close attention to these four areas when building the house, and personally inspect and accept each area.

PVC Chamfer

Otherwise, if there are problems later on, you won’t have a place to cry.

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Sharing | Principle and detection method of ultrasonic method for detecting internal defects in concrete (with operation video attached)

When there is only one measurable surface at the crack location of the structure and the estimated crack depth is not greater than 500mm, the single-sided flat measurement method can be used.

When conducting horizontal testing, different distance measurements should be taken at the tested location of the crack, and measuring points should be arranged according to whether they span or not (avoiding the influence of steel bars when arranging measuring points).

Calculate the actual propagation distance of ultrasonic waves and the sound velocity of concrete without crossing the joint, read the sound time value of the cross joint flat measurement, and then obtain the crack depth value of each measuring point.

Shuttering Magnet

According to the relevant determination method, the depth value of the crack to be measured is finally obtained.

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Analysis and simulation of flexural and fracture performance of ultra-high performance fiber-reinforced concrete based on XCT images

The UHPFRC combination used in this experiment is shown in Table 3.

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The cement used is PII52.

5 Portland cement; The sand is medium sand with a fineness modulus of 2.

5; Silica fume is produced by Eken Company, with a specific surface area of 18200m2/kg and a silica content greater than 95%; The water reducing agent is a highly efficient polycarboxylate water reducing agent; Steel fiber is a copper plated steel fiber produced by a metal products company in Zhejiang, with a volume fraction of 1%, a length of 13mm, a diameter of 0.

2mm, a tensile strength of 2400MPa, and an elastic modulus of 200Gpa.

Swift Lift Void Former

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| Training to Strengthen Skills and Improve Quality: Concrete Quality

From June 24th to 25th, the special training on concrete quality inspection in the eastern region was successfully carried out in Wuxue Industrial Park.

This training is an important part of the empowerment activities of the regional skills competition series, aimed at enhancing the professional theoretical level and practical ability of concrete quality inspection and related personnel in each park, consolidating the foundation of quality inspection, and promoting the implementation of “training through competition and learning through competition”.

Embedment Plate

Concrete quality inspection personnel from various parks, as well as key personnel from production and laboratory related positions, participated in on-site training.

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Prevention and Control of Early Cracks in Pre mixed Concrete

Abstract: This article takes the shrinkage deformation of concrete as an auxiliary indicator and studies the effects of three factors, including water cement ratio, expansion agent dosage, and air entraining agent, on the impermeability performance of self compacting concrete through experiments.

The results indicate that there is a certain relationship between the shrinkage deformation of self compacting concrete and its impermeability performance; When the water cement ratio is between 0.

Steel Chamfer

35 and 0.

36 and the expansion agent is between 30 and 40 kg/m3, the shrinkage deformation of self compacting concrete is small, and the impermeability performance is optimal.

Moreover, the application of air entraining agent in self compacting concrete can effectively suppress its shrinkage deformation and improve its impermeability performance.

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