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concrete admixture
介绍
Concrete Admixtures
Concrete admixtures are materials in the form of powder or fluids that are added to the concrete to give it certain characteristics which is not obtainable with plain concrete mixes. Admixtures are added to concrete batch immediately before or during mixing to modify the ......
1045 
Emily
carbon tetrachloride poisoning
Carbon Tetrachloride Poisoning
Carbon tetrachloride has been widely used in many industries and by many people as a solvent in electroplating, dry cleaning, and processing metals. Despite its widespread and common use, however, carbon tetrachloride poisoning (CTP) remains a real threat as this hi......
ammonia poisoning
Ammonia poisoning is a very serious medical condition that is caused by the inhalation or ingestion of ammonia. Ammonia is a colorless gas with a very pungent odor that is used in many industrial and household products. It is found in cleaning products, fertilizers, and can also be produced by som......
coagulant
Introduction
Concrete is an essential construction material used in various applications in the building and infrastructure industries. The strength and formability of concrete are determined by the grade, type and amount of additives used. One of the most important factors affecting the performa......
Quick cutting mouth
It is often said that a great education, and the ability to learn, are two of the most valuable gifts a person can receive. For many, the contributions an education can make to life are so substantial that they become dedicated to ensuring that everyone has the opportunity to improve their life th......
Causes and troubleshooting methods of common failures of die-casting molds
Common Faults and Exclusion Methods of Aluminum Die Casting Molds
Aluminum die castings are widely used in various industries due to their low cost and good performance. However, during the molding process, there are sometimes many faults, which will affect the quality of the molding. Therefore, ......
Harm and Prevention of Cavitation in Automobile Hydraulic System
Abstract
The purpose of this paper is to analyze the hazards of cavitation and corrosion in hydraulic systems, and to explore the ways to prevent them. The development of hydraulic systems has been progressing rapidly in recent years, and it has become an important and powerful means of transmiss......
Diagnose the Faults of Agricultural Transport Vehicles by Intuitive Diagnosis
Agricultural Transport Vehicle Trouble Diagnosis
For many agricultural professionals, troubleshooting and diagnosing a malfunctioning agricultural transport vehicle is an important skill. Understanding and being able to recognize common problems on this type of machinery is also essential. The pu......
Common sense of mechanical injury first aid
Emergency care for mechanical injuries
Emergency care for mechanical injuries involves a variety of critical practices that should be implemented immediately upon the onset of the injury. Mechanical injuries may result in a wide range of damage to a person’s skin, ligaments, muscles, tendons and......
Mechanical descaling of wire rod
A mechanical scaler is a type of dental instrument used in scaling teeth. It is used in the dental profession to remove plaque and calculus (tartar) from teeth, which is necessary in order to maintain good oral hygiene and prevent periodontal (gum) disease. A mechanical scaler is also known as a ......
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