Reference sharing 165: Real time interpretable clustered layered LightGBM framework for high-precision prediction of concrete strength and

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High performance concrete (HPC) has strict requirements for mix ratio accuracy and performance stability.

Traditional iterative trial mixing methods based on ACI specifications are difficult to efficiently explore high-dimensional nonlinear interaction relationships between multi-component materials.

Existing machine learning prediction models mostly remain in the offline computing stage, and generally suffer from insufficient interpretability of the “black box” and poor adaptation to the heterogeneity of mix proportion samples, making it difficult to directly support real-time mix proportion adjustment on site.

Ferrule Loop Insert

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Rapid identification method for fly ash quality (reference for reference)

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Fly ash is one of the main raw materials for ready mixed concrete, and its quality directly affects the quality and performance of the concrete.

In order to strictly control the quality of incoming fly ash and better utilize this resource to improve concrete performance, this article summarizes a rapid identification method for fly ash quality.

Halfen Channel

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How to Reasonably Apply Concrete Shell Reinforcement Results under Small Bias Pressure in Knowledge Base

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A simple supported unidirectional slab with a thickness of 250mm and a protective layer thickness of 25mm.

Rebar Wheel Spacers

The concrete strength grade is C30, and the steel reinforcement is HRB400.

Modeling and loading are shown in Figure 1.

The right end of the board is a sliding support, and the left end is a hinged support.

The sliding end applied a certain axial force and a certain uniformly distributed surface load on the plate.

As shown in Figures 2 and 3, the manually calculated reinforcement area is 7.

608mm2, while the SAP2000 concrete shell reinforcement result is 2.

038mm2.

The difference between the two is significant.

Why is this?.

Seven concrete companies in Fujian have been included in the list of deadline rectification

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In the first half of 2026, a total of 9 pre mixed concrete enterprises were inspected for qualification verification (hierarchical guidance), including 7 enterprises that have obtained professional contracting qualifications for pre mixed concrete since 2020, and 1 each in Licheng District and Meizhou.

Dog Bone Anchor

Extract 8 parts of raw material sand, 8 parts of cement, and 8 parts of fly ash (to be notified separately after the test results are issued).

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