Hengchun Zhang
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View article: Research and Application of Drilling Fluid Cooling System for Dry Hot Rock
Research and Application of Drilling Fluid Cooling System for Dry Hot Rock Open
The drilling fluid cooling system is a key technology for reducing wellbore temperatures, improving the working environment of downhole equipment, and ensuring safe and efficient drilling in high-temperature wells. Based on the existing dr…
View article: A Multifunctional Bottomhole Power Drilling Tool Rotary Speed Sensor Based on Triboelectric Nanogenerator
A Multifunctional Bottomhole Power Drilling Tool Rotary Speed Sensor Based on Triboelectric Nanogenerator Open
The rotary speed of bottomhole power drilling tools during drilling operations provides feedback on bottomhole assembly malfunctions and borehole trajectory anomalies. However, existing rotary speed sensors suffer from limitations in their…
View article: Investigation on the mechanical and shrinkage performance of UHP-ECC for existing brick masonry wall reinforcement
Investigation on the mechanical and shrinkage performance of UHP-ECC for existing brick masonry wall reinforcement Open
View article: Mechanical Properties and Microstructure of Geopolymer-Based PFSS Synthesized from Excavated Loess
Mechanical Properties and Microstructure of Geopolymer-Based PFSS Synthesized from Excavated Loess Open
Pre-mixed fluidized solidified soil (PFSS) has the advantages of pumpability, convenient construction, and a short setting time. This paper took the excavated loess in Fuzhou as the research object and used cement–fly–ash–ground granulated…
View article: Investigation on the Effect of Fiber on the Constrained Shrinkage Performance of Engineering Cementitious Composite (Ecc)
Investigation on the Effect of Fiber on the Constrained Shrinkage Performance of Engineering Cementitious Composite (Ecc) Open
View article: Effects of visual feedback balance system combined with weight loss training system on balance and walking ability in the early rehabilitation stage of stroke: a randomized controlled exploratory study
Effects of visual feedback balance system combined with weight loss training system on balance and walking ability in the early rehabilitation stage of stroke: a randomized controlled exploratory study Open
Background: Previous studies have suggested that the Pro-Kin visual feedback balance system can promote the recovery of balance function in stroke patients. Objectives: However, this system has not been used effectively in the early stages…
View article: Research and application of cave slag tailings in concrete
Research and application of cave slag tailings in concrete Open
This article starts with the characteristics of cave slag tailings, proposes to optimize the quality of the concrete production process and product structure by improving the composition of concrete fine aggregates, and conducts research o…
View article: Cost Analysis Between Prefabricated Buildings and Traditional Buildings
Cost Analysis Between Prefabricated Buildings and Traditional Buildings Open
This paper analyzes the cost between prefabricated buildings and traditional buildings with examples, compares the cost difference between prefabricated buildings and traditional buildings, and analyzes the reasons for the cost difference,…
View article: Effect of sand percentage on early-age cracking behaviors of concrete
Effect of sand percentage on early-age cracking behaviors of concrete Open
It was analyzed by using flat-type specimens that studied the influence of sand percentage on early-age cracking behaviors.The results showed that concrete early cracking area was decreased first and then increased, while early cracking ar…
View article: Mechanism analysis and protective measures of anti-salt corrosion in concrete
Mechanism analysis and protective measures of anti-salt corrosion in concrete Open
The sulfate and chloride has great significant erosion on concrete structure.To provide theoretical reference for practical engineering application, this paper describes the mechanism and influencing factors of concrete sulfate and chlorid…
View article: The orthogonal experiment research on premixed wet mortar
The orthogonal experiment research on premixed wet mortar Open
As a new kind of environmental protection building material, premixed wet mortar possesses a wide application prospect.The technical difficulty is to maintain the workability of premixed wet mortar as long as construction required setting …
View article: Mixture design methods for high performance concrete a review
Mixture design methods for high performance concrete a review Open
Mixture design is a very important step in production and application of concrete.Many mixture design methods have been proposed for high performance concrete (HPC).This paper presents a critical review on HPC mixture design methods in pub…