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Discussion on durability of concrete Abstract: Improving the durability of concrete is of great significance to the current sustainable development strategy, better utilization of resources, energy conservation and environmental protection. -
How to improve the durability of concrete Abstract: Through the analysis of several factors affecting the durability of concrete structures, combined with the existing construction experience, this paper expounds how to improve the durability of concrete structures. -
Technical Analysis of Durable Concrete Abstract: The article expounds the only way to develop and apply the durable concrete of the compound mixing technology, and combines the application of the durable concrete of the Hefei Nanjing passenger dedicated line, the mix design focuses on the requirements of the working performance, service performance, economic performance, durability and other aspects of the concrete, and fully analyzes the requirements of fly ash, slag powder Effect of combined admixtures of UC-IA superplasticizer on concrete properties -
Explanation of concrete durability specification 1. Background and status quo of durability 2 Compilation process of durability specification 3 General structure of specification 4 Specific provisions for durability -
Discussion on measures to improve concrete durability Abstract: During the construction of construction projects, the use of concrete is very extensive, and its consumption ranks first among all building materials -
Discussion on durability of concrete structure Concrete structures are widely used throughout the 20th century because of their good integrity, durability, plasticity and low maintenance costs. The durability problem of concrete was found in the 1960s and 1970s -
Study on frost resistance durability of concrete.pdf Study on frost resistance durability of concrete.pdf -
Exploration and Analysis of Durability of Concrete Structure Concrete always plays an important role in building construction. This paper aims to propose improvement methods by studying the factors that affect the durability of concrete. -
Measures to improve the durability of concrete Abstract: In civil engineering, concrete is one of the most widely used and used building materials. In the past hundred years, the continuous improvement of concrete strength has become its main development trend. In developed countries, more and more high-strength concrete with a pressure of more than 50MPa is used. Some farsighted experts, taking into account the needs of some projects, proposed high strength, durability and construction -
Durability control of concrete structures in coastal environment Abstract: With more and more coastal buildings, people pay more and more attention to the corrosion of coastal environment on buildings, especially concrete. Only by improving the durability of concrete can we ensure the design service life of buildings. This paper mainly analyzes a coastal entity project, and puts forward several control methods to improve the durability of concrete. -
Influence factors and control of concrete strength and durability [Abstract]: The strength and durability of the foundation for the use of concrete, good quality has a crucial impact on concrete construction projects. This paper focuses on the analysis of the factors affecting the strength and durability of concrete, which can be summarized as external factors and internal factors -
Discussion on durability design of concrete structure Abstract: The durability of concrete is one of the main reference indexes for evaluating the reliability of concrete structures in China, which can fundamentally determine the service life of buildings -
Technical disclosure of durable concrete construction Before concrete construction, concrete mix ratio selection test shall be carried out in advance according to the design and construction process, and quality control and quality assurance measures shall be formulated for the pre construction process according to the characteristics of concrete structure, construction environment and use environment conditions -
Talking about the measures to improve the durability of concrete High performance concrete has rich technical content. Although the same industry has different definitions and interpretations of high performance concrete, they both agree that the basic feature of high performance concrete is to design according to durability, ensure that the mixture is easy to pour and compact, avoid or minimize cracks caused by temperature and shrinkage, and have sufficient strength after hardening, The internal pore structure is reasonable and has -
Technical measures for improving concrete durability In the future operation or use of frost resistant and impermeable concrete, the concrete peels off, and various experiences of concrete from raw materials, production, construction and later maintenance are analyzed. -
Diagnosis, testing, design and protection of concrete durability As an artificial stone, concrete should have durability similar to natural stone. However, tests and applications have proved that concrete and reinforced concrete will deteriorate when they are eroded by harmful media in soil, water and air, or the chemical and physical effects of harmful ingredients in the concrete itself will cause cracking, corrosion, scaling, expansion, and looseness -
Steel corrosion and durability of concrete structures This paper analyzes the influence mechanism of chloride ion corrosion, concrete neutralization and environmental factors on reinforcement corrosion, and probes into the prevention of reinforcement corrosion from the aspects of high-performance structural design of concrete, selection of concrete raw materials, thickness of protective layer, concrete surface treatment and rust prevention treatment of reinforcement itself. -
Durability test model of reinforced concrete In this paper, firstly, the durability of reinforced concrete structures is summarized, and the basic theory of similarity and electrochemical principle of reinforcement corrosion are expounded. The mechanism of concrete carbonization and chloride ion erosion is studied, and the criterion equation of concrete carbonization and chloride ion erosion is established through accelerated test. According to the electrochemical principle of rebar corrosion, the overall corrosion rate and local corrosion rate of rebar in concrete are established -
Technical disclosure of durable concrete construction Before concrete construction, concrete mix ratio selection test shall be carried out in advance according to the design and construction process, and quality control and quality assurance measures shall be formulated for the pre construction process according to the characteristics of concrete structure, construction environment and use environment conditions. Concrete trial pouring shall be carried out for important concrete structures to verify and improve the concrete construction process. -
Standard for inspection and evaluation of concrete durability This data is the concrete durability inspection and evaluation standard, which is detailed and can be used for reference. -
Standard for durability assessment of concrete structures This data is the durability evaluation standard for concrete structures, including durability evaluation criteria, service condition investigation, etc., for reference. -
Understanding and protection of concrete structure durability [Abstract] The durability of concrete structures is a worldwide problem that currently puzzles civil infrastructure engineering. This paper briefly introduces the current situation of the durability of concrete structures, states the main factors affecting the durability of concrete structures, and puts forward protective measures to solve the problem. -
Standard for durability design of concrete structures The latest national standard is necessary for structural design, engineering design, scientific research and learning. There are a lot of content updates. Please download them if you need -
Analysis and Discussion on Relevant Factors of Concrete Durability This paper discusses the influence of concrete on concrete durability from the aspects of raw material selection, concrete mix design, adaptability of concrete components to the external environment and concrete construction molding maintenance, and puts forward technical measures to improve concrete durability. -
Influence of raw materials on concrete durability : Concrete is the most widely used building material at present. It is of great significance to improve the durability of concrete and extend the service life of engineering structures. The selection of high-quality raw materials is the basis for preparing concrete, optimizing concrete mix ratio and producing durable concrete. Combining with engineering practice, this paper analyzes the impact of cement, admixtures, aggregates and additives on concrete -
Analysis on the Research Status of Concrete Structure Durability By analyzing the influencing factors of coagulation durability and corresponding operating conditions, effective improvement measures are proposed. -
Basic Concepts of Durability Design of Concrete Structures The basic concept of concrete structure durability and the problems needing attention in design are expounded -
Cracks and structural durability of prestressed concrete sleepers This paper summarizes the investigation of cracks in prestressed concrete sleepers, and analyzes the causes of cracks from the physical, mechanical and chemical perspectives. Based on the domestic and foreign literature, combined with the investigation and test results of prestressed concrete sleepers, this paper analyzes the influence of cracks on the sleeper structure and durability, and puts forward the prevention and control measures for cracks in concrete sleepers -
Influence of crack repair on durability of concrete structure Self waterproofing of reinforced concrete members is an important part of building waterproofing system. When the component cracks due to temperature and shrinkage, the ensuing leakage often brings great trouble to users. For example, most of the office buildings now have underground garages, and cracks and leaks often occur in the cast-in-place roof and wall of the basement. This kind of crack is generally solved by grouting, because -
Discussion on durability of reinforced concrete structure Abstract: In view of various problems that affect the use function and endanger the structural safety of reinforced concrete structure buildings at present, this paper expounds the importance of the durability of concrete structures, analyzes on the main factors influencing the durability, and puts forward specific measures for preventing the aging of durability and improving the durability. -
Durable concrete and impermeable concrete construction measures for a tunnel The concrete mixing plant with automatic metering and detection device is used for the concrete construction of this tunnel, and each construction process of concrete construction is strictly controlled. The cement, fly ash, coarse and fine aggregate additives and mixing water are strictly checked according to the specifications, and the alkali content is carefully controlled to achieve the quality control of the whole process of concrete, Ensure the construction quality of concrete. -
Special Construction Scheme for Concrete Durability of Plot The project is located in the coastal environment. In order to improve the durability of concrete, make concrete resistant to environmental media and maintain its good performance and appearance integrity for a long time, so as to maintain the safe and normal use of concrete structures. -
Common quality defects of commercial concrete and their prevention Abstract: Commercial concrete has been popularized for many years, but some common quality problems still bother us. The author talks about his own views on the production and construction practice for several years for reference and discussion of peers. -
Analysis and prevention of influencing concrete quality Abstract: Concrete is a widely used structural material at present. This paper mainly analyzes various factors affecting concrete quality from the perspective of concrete production, and puts forward reasonable and feasible suggestions and preventive measures to ensure the safety, durability, economy and rationality of concrete production. -
Common quality problems of concrete and prevention measures Phenomenon. Some parts of the concrete structure appear loose, less mortar, more stones, and voids between stones are similar to honeycombed holes. 1.2 Causes -
Technical disclosure of common problems of concrete quality The quality and technical performance of cement, sand, interface agent and plain concrete slurry must meet the design requirements and construction acceptance specifications, and there should be quality certification, factory certificate, test report, anti-counterfeiting signs and other data. -
Concrete quality defect control of a project A project is an earthquake resistant underground structure with a three-level earthquake resistance and a frame structure. Concrete quality control is very important in construction engineering. In view of the factors that cause concrete quality defects, the control discussion should be carried out from the aspects of concrete composition materials, concrete mix proportion, concrete production process, etc. -
Common faults of concrete quality and their prevention This data is about the common problem of concrete quality and its prevention. There is no water slurry on the concrete surface and there are gaps between aggregates, forming more or less holes, which are honeycomb in size and irregular in shape. The exposed stone depth is often ≥ 5mm;. The design is accurate and the content is detailed, which is worth downloading. -
Manual of common problems of concrete quality including drawings In the construction of concrete works, some common quality problems often occur, which affect the appearance quality and use safety of concrete structures. How to eliminate and reduce common quality problems to the maximum extent and ensure the internal and external quality of structural engineering is the common goal of all participants -
Prevention of common problems in concrete quality management (1) The quality responsibility system is not clear and implemented in place. The spirit of Several Opinions on Strictly Implementing the Highway Engineering Quality Supervision Responsibility System issued by the Ministry of Transport has not been implemented; Quality responsibility division does not cover all construction contents; The person responsible for the quality of key processes is not implemented; Poor implementation of quality responsibility rewards and punishments; Some personnel involved in the construction lack training, and their awareness of quality responsibility is weak.
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one Code for durability of steel structures -
two Code for durability inspection of concrete -
three Concrete durability specification -
four Concrete specification durability -
five What is the quality of concrete related to -
six Specification for durability of highway bridges -
seven Durability design of fire pump room -
eight Download Concrete Durability Specification