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08/222026
top Reco 6.Fatigue Stress Amplitude Limits and Calculation Methods for Steel Reinforcement
From the perspective of an international concrete engineering expert, this article specifies the value-taking principles of fatigue stress amplitude limits for ordinary steel bars and prestressing reinforcement, and introduces the calculation formulas of fatigue stress ratio for different steel types. It presents detailed parameter tables and supplementary clauses for welded joints and verification exemption conditions, providing a standardized basis for fatigue checking of concrete structures u
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08/222026
top Reco 5.Total Elongation at Maximum Force and Elastic Modulus of Steel Reinforcement
From the perspective of an international concrete engineering expert, this article specifies the minimum total elongation at maximum force for ordinary and prestressing steel reinforcements, and presents graded elastic modulus values for different steel types. It covers ductility requirements for seismic-grade bars and modulus parameters for wires and strands, providing essential reference for structural deformation and ductility design.
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08/162026
top Reco 4.Design Strength Values of Steel Reinforcement for Concrete Structural Design
From the perspective of an international concrete engineering expert, this article specifies the design strength values for ordinary steel bars and prestressing reinforcement. It explains special strength rules for axially compressed members and transverse reinforcement, and presents complete parameter tables, providing a standardized calculation basis for structural bearing capacity design.
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08/142026
top Reco 3.Steel Reinforcement Types and Characteristic Strength Parameters for Concrete Structure Design
From the perspective of an international concrete engineering expert, this article specifies the selection principles for longitudinal mild reinforcement, stirrups and prestressing tendons in concrete structures. It clarifies the 95% guarantee rate requirement for steel strength characteristic values, and presents detailed strength parameters for various ordinary steel bars and prestressing steel products in tabular form, serving as a standardized material reference for structural design.
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08/122026
top Reco 2.Concrete Material Strength Requirements and Mechanical Property Parameters in Structural Design
From the perspective of an international concrete engineering expert, this paper specifies minimum concrete strength grade requirements for plain, reinforced and prestressed concrete members, as well as rules for high-strength reinforcement and repeated load conditions. It also presents standard and design values of concrete axial strength, and elastic modulus and deformation parameters, providing standardized material reference for structural design.
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08/112026
top Reco 1.Interpretation of Service‑Limit‑State and Durability Clauses for Concrete‑Structure Design Code
This technical guide unpacks two essential chapters in the concrete‑structure‑design specification. It introduces load‑combination schemes and the S≤C checking formula for normal‑service‑limit‑state inspection. Multiple performance thresholds like crack width and natural vibration frequency are covered. Besides, full‑scale durability parameters for 50‑year‑design‑life concrete are sorted by environment categories, with extra rules for prestressed, plain and air‑entrained concrete.
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08/032026
top ROOBON Will Attend World of Concrete Asia(WOCA ) Exhibition, Welcome Global Clients for Face-to-Face Negotiation
ROOBON will take part in the 2026 World of Concrete Asia (WOCA)Exhibition. All overseas contractors, distributors and project buyers are welcome to visit and have for technical communication and order talks. We provide free exhibition registration service and travel arrangement support. WOCA is a top global expo focusing on full-series concrete construction equipment with massive professional purchasers.
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07/262026
20.Construction of Concrete Whole-industry-chain Innovation Closed-loop: Future Development Model of R&D, Verification, Application and Mass Production Iteration
The traditional concrete industry has the problem of disjointed R&D and production, resulting in low conversion rate of innovative achievements. This paper analyzes the pain points of the current industry chain, constructs a closed-loop innovation model of material R&D, experimental verification, engineering trial application and mass production iteration. It puts forward the future digital whole-industry-chain upgrading path and enterprise industrial operation framework.
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07/262026
19.Patent Layout Comparison of Domestic and Foreign Concrete New Materials: Technological Breakthrough Path and International Promotion Strategy of Export-oriented Products
European, American and Japanese enterprises have formed patent technical barriers in high-end concrete new materials. This paper compares the patent layout differences of concrete innovation technologies at home and abroad, summarizes the advantageous track patents of domestic enterprises. It puts forward a technological breakthrough path and an international promotion strategy of patent-backed product export, helping domestic new materials break through overseas intellectual property barriers.
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07/262026
18.Research on Multifunctional Intelligent Concrete: Landing Barriers and Industrial Path from Laboratory Samples to Structural Intelligent Carriers
Multifunctional intelligent concrete with sensing, energy storage and self-monitoring functions is a frontier direction of future building material innovation. This paper summarizes the current laboratory research progress of conductive, energy-storage and self-sensing concrete, analyzes the cost, stability and standard barriers restricting industrialization. It proposes a phased engineering landing path and international cooperative research and development layout strategy.
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07/262026
17.AI Intelligent Algorithm Driven Concrete Mix Design: Practical Effect and Long-term Digital Value Replacing Traditional Trial Mixing Mode
Traditional concrete trial mixing mode is time-consuming, material-consuming and low-precision, unable to adapt to the personalized material demand of modern engineering. This paper introduces the application principle and practical cases of AI machine learning in concrete mix design, summarizes the advantages of intelligent batching replacing manual trial mixing. It analyzes the long-term digital value of cloud database construction and overseas adaptive intelligent formula system.
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07/262026
16.New Material Track Layout Under Global Low-carbon Policies: Current R&D Investment and 2030 Industrial Scale Prediction
Global carbon tariff and green building policies are reshaping the development pattern of the concrete industry. This paper sorts out the constraints of international mainstream low-carbon policies on building materials, summarizes the current R&D focus and investment direction of domestic concrete new materials. It predicts the industrial scale and market increment of low-carbon concrete tracks by 2030, and puts forward targeted enterprise technology layout strategies for overseas market compet
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