A catalogue of the latest articles on science and technology, news materials about science and techn

Updated on technology 2024-03-17
4 answers
  1. Anonymous users2024-02-06

    Scientific and technological innovation.

    Construction waste is turned into concrete perforated bricks.

    Concrete perforated bricks are a product that fills in the gaps. The production of such products can not only dispose of part of the urban construction waste, but also reduce a little environmental pollution; At the same time, it can replace a part of KP1 clay perforated bricks, which plays a role in saving soil and saving energy and reducing greenhouse gas emissions; And in the production of clay porous bricks, sometimes affected by the weather, can not be produced normally, and the use of construction waste to produce concrete porous bricks is not affected by this factor, so it can be used to regulate the role of the market to calm the world.

    Construction waste slag concrete porous brick is a kind of concrete product that is made of construction waste slag as raw material, crushed and screened as aggregate, added to cement, additives and other admixtures, mixed with water, and vibrated by the molding machine. Among them, it should be noted that:

    The screening process is done to create the best gradation; The proportion of sintered clay products and concrete components in the material mainly depends on the strength, and under normal circumstances, a certain proportion of sintered clay products should be mixed to improve the physical properties of the products, but the strength will be affected if the amount is too large; The hole brick should be made of semi-blind hole structure, which has certain benefits in construction, mechanical properties and physical properties.

    In general, the construction waste slag concrete porous brick is mainly used for load-bearing structures, and its strength grade should be taken from the economic point of view, and the perforated bricks higher than MU10 can be produced but not economical, from this point of view, the concrete porous bricks are suitable for the mixed structure below six floors; At the same time, it can be used instead of KM type clay sintered hollow bricks for frame infill walls, and construction waste slag concrete bricks are used.

    Rural buildings with less than three or four floors.

  2. Anonymous users2024-02-05

    Serial Number Title Author Page Number.

    21. Application of trenchless interspersed lined PE pipe technology in the rehabilitation of power and water supply pipelines in the past century; Geng Yanju; 29

    22. Design and application of paper-type detector Liu Yi; Liu wei; 30-3123 Implementation of Typical Continuous Casting Process Control Computer System Pan Bo; 32-3324 Research on welding deformation control of long-span steel box girder Zhao Canhong; 34-3525 Bridge cast-in-place beam construction technology and practice** He Daliang; 3626 Strengthen road construction technology and strictly control construction quality Liu Jie; 3727 Bracket method construction of 30m beam across the railway Li Yong; 3828 Analysis of common diseases of bridges in highways and their countermeasures Zhu Taoyou; 3929 Reflection on the Quality Type of Highway Bridge Pile Foundation and Its Detection Measures Zhong Xiaolin; Construction skills of expansion and contraction devices in 4030 highway bridges** Wu Chirong; 4131 Highway and bridge maintenance and control methods** Lin Le; 4232** Reinforcement technology of road and bridge structure Guo Feng; GUO Feng; 4333 intercity railway catenary construction mode** Zhou Zhongfa; 44+4634 Construction Practice and Understanding of Percussion Bored Pile Meng Xianzhong; HU Xianfa; Wang; ZHANG Chengpei; 45-46

    35. Analysis of highway bridge reinforcement design and construction suggestions Ou Ying; Calculation method of soft soil foundation settlement of 4736 high-speed railway** Fu Hongmei; 4837 Temperature Effect Analysis of Asymmetric Continuous Rigid Bridge Yangdong; Hu Feiling; CHEN Jinzhou; 49-5038 The Importance of Strengthening Quality and Ensuring Safety in High-Rise Building Construction at This Stage Li Binglin; 51

    39 Construction site data management** Li Beiping; CHANG Wanwei; 5240 Construction Engineering Template Scheme Selection and Construction Technology Analysis Huang Guohui; 53 Note: The magazine catalog will be updated with a certain timeliness in each issue, which is for reference only.

  3. Anonymous users2024-02-04

    Title: Science & Technology Information.

    Founded: 2003.

    Ben Kai: 16 open.

    Language: Zhongfan slag Chinese.

    Place of Publication: Beijing.

    Issue:Published.

    General Circulation**: Beijing Newspaper and Periodical Distribution Bureau.

    Scope of issuance: domestic and foreign public offerings.

    Subscriptions: Post office subscriptions.

    Price: 20:00 RMB (RMB) per period.

    The replenishment liquid quietly fills the description: all authors who publish articles from the magazine "Science and Technology Information" will receive 2 sample copies after the magazine is published! This journal has been included in the "China Core Journals (Selection) Database", "Chinese Academic Journals (CD-ROM Edition)", "Wanfang Data Data Buried Beam Character Journals Group", "Chinese Science and Technology Journals Database" and other networks**.

  4. Anonymous users2024-02-03

    Scientific and technological innovation. Construction waste is turned into concrete perforated bricks.

    Concrete perforated bricks are a product that fills in the gaps. The production of such products can not only dispose of part of the urban construction waste, but also reduce a little environmental pollution; At the same time, it can replace a part of KP1 clay perforated bricks, which plays a role in saving soil and saving energy and reducing greenhouse gas emissions; Moreover, in the production of clay porous bricks, sometimes affected by the weather, can not produce normally, and the use of construction waste to produce concrete porous bricks is not affected by this factor of bending and grinding, so it can be used to regulate the market to calm the first role.

    Construction waste slag concrete porous brick is a kind of concrete product that is formed by vibrating and forming by the molding machine with cement, additives and other admixtures as raw materials, crushing, screening, mixing, and stirring by the molding machine. Among them, it should be noted that:

    The screening process is done to create the best gradation; The proportion of sintered clay products and concrete components in the material mainly depends on the strength, and under normal circumstances, a certain proportion of sintered clay products should be mixed to improve the physical properties of the products, but the strength will be affected if the amount is too large; The hole brick should be made of semi-blind hole structure, which has certain benefits in construction, mechanical properties and physical properties.

    Under normal circumstances, the construction waste slag concrete porous brick is mainly used for load-bearing structures, and its strength grade should be taken from the economic point of view of the buried bucket should be taken MU10, and the perforated bricks higher than MU10 can be produced but not economical, from this point of view, the concrete porous bricks are suitable for the mixed structure below six layers; At the same time, it can be used instead of KM type clay sintered hollow bricks for frame infill walls, and construction waste slag concrete bricks are used.

    Rural buildings with less than three or four floors.

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