Technological Features of Designing Buildings Using a Permanent Formwork

2018 ◽  
Vol 931 ◽  
pp. 311-314
Author(s):  
Darya A. Protopopova ◽  
Ekaterina M. Kojevnikova
Keyword(s):  
Reinforced Concrete ◽  
Permanent Formwork ◽  
The Creation

In article the data on reinforced concrete emergence and technologies of projects construction with its application are provided. A detailed description of the erecting buildings technology based on a system of retained forms with the identification of positive and negative characteristics and modern materials is proposed for the creation of a permanent formwork.

Experience of Using Self-Compacting Concrete Mixes in Transport Construction

2020 ◽  
Vol 992 ◽  
pp. 135-142
Author(s):  
I. Pulyaev ◽  
S. Pulyaev
Keyword(s):  
European Union ◽  
Reinforced Concrete ◽  
Concrete Structures ◽  
Tunnel Construction ◽  
Reinforced Concrete Structures ◽  
Use Of Self ◽  
The European Union ◽  
Self Compacting Concrete ◽  
Concrete Mixtures ◽  
The Creation

The creation of self-compacting concrete (SCC) is associated with the introduction of plasticizing additives based on polycarboxylate esters (PCE). The first patent for a group of substances proposed for use as superplasticizers for concrete, was declared in the early 80-ies of the last century in Japan. In the mid 90-ies superplasticizers based on esters of polycarboxylates began to be used in Europe. In Russia, the use of self-compacting concrete began much later, and in bridge and tunnel construction almost a few years ago. Currently, in the European Union, 70-80% of reinforced concrete structures are made or erected from self-compacting concrete mixtures, and concrete is commonly called self-compacting. In Russia, such concretes are sometimes called self-leveling. The volume of their use is still small.

scholarly journals Two-layer reinforced concrete panels with uniformly compressed sections

2020 ◽  
Vol 315 ◽  
pp. 07004
Author(s):  
Dmitry Mailyan ◽  
Alik Blyagoz ◽  
Konstantin Kretinin
Keyword(s):  
Reinforced Concrete ◽  
Cross Section ◽  
Concrete Panels ◽  
The Creation ◽  
Concrete Elements

The paper contains the issues related to the creation of a non-uniform prestress cross-section of reinforced concrete elements compressed during operation of working with a one-way eccentricity of the resultant longitudinal forces.

Fire Resistance Performance of Reinforced Concrete Column with Embedded Permanent Formwork Using Woodwool Panel

2014 ◽  
Vol 661 ◽  
pp. 111-117 ◽  
Author(s):  
Ahmad Zakiah ◽  
Ahmad Nursafarina ◽  
Azerai Ali Rahman ◽  
Hanizah Abdul Hamid ◽  
Mohammad Soffi Md Noh
Keyword(s):  
Reinforced Concrete ◽  
Cross Sections ◽  
Fire Resistance ◽  
Resistance Test ◽  
Concrete Column ◽  
Reinforced Concrete Column ◽  
Permanent Formwork ◽  
Fire Resistance Test ◽  
Slender Column ◽  
Resistance Performance

This paper reports the investigation on the fire resistance performance of reinforced concrete column with embedded permanent formwork from woodwool board (WWCB). A series of slender column embedded with and without WWCB with cross-sections 200 mm x 200 mm for column without WWCB and 300 mm x 300 mm with embedded 50 mm thick WWCB. The height of the slender column was 2000 mm. The fire resistance test was performed in accordance with BS 476-22:1987 for two (2) hours fire exposure. The fire resistance test for the embedded column with WWCB was classified as “good” in resisting fire and heat transfer.

scholarly journals High-strength concrete with new organic mineral complex admixture

2019 ◽  
Vol 265 ◽  
pp. 01003
Author(s):  
Makhmud Abu-Khasan ◽  
Valentina Soloviova ◽  
Dmitry Soloviov
Keyword(s):  
Reinforced Concrete ◽  
High Voltage ◽  
Transmission Lines ◽  
High Performance ◽  
Mineral Admixture ◽  
Line Lattice ◽  
Organic Mineral ◽  
The Creation ◽  
High Voltage Transmission ◽  
Lattice Towers

There are the great problems of the concrete for high voltage the transmission lines obtaining. One of them is the creation of reinforced concrete centrifugally spun transmission towers with enhanced reliability and durability for high-voltage transmission lines having voltage of 110-750 kV. The second problem is the creation of high-quality reinforced concrete foundations to fix overhead electric line lattice towers in the ground because more than 50% of operated reinforced concrete towers and foundations are in need of repair or were put into repair. A complex high-performance organic mineral admixture for tower bodies of high-voltage transmission lines is developed. The main components of the admixture are polycarboxylate polymere and silica sol. It insures increased compressive strength and tensile strength in bending, freeze resistance, waterproofing and corrosive resistance. The obtained positive results allow to reduce a compression zone width and a crack growth width. The paper can be useful for not only the transport construction but and for concrete obtaining with special properties at any fields.

scholarly journals DAMAGE TO REINFORCED CONCRETE PANELS PRODUCTION BUILDINGS

2021 ◽  
Vol 9 (2) ◽  
pp. 66-70
Author(s):  
Timofey Krakhmalnyy ◽  
Sergej Evtushenko
Keyword(s):  
Reinforced Concrete ◽  
Sandwich Panels ◽  
Automated System ◽  
Design Solution ◽  
Project Implementation ◽  
Concrete Wall ◽  
Concrete Panels ◽  
Wall Panels ◽  
Reinforced Concrete Wall ◽  
The Creation

The article continues the cycle of work on the creation of an automated system for monitor-ing defects and damages. In this article, the defects and damage of prefabricated reinforced concrete wall panels are systematized, recommendations are given for assessing the tech-nical condition of the panels, recommendations for repair, and a unique scheme for replac-ing inoperative wall panels with sandwich panels is considered. The design solution for the replacement of wall panels was supplemented with drawings, as well as photographs of the installation process and the results of the project implementation.

scholarly journals STRUCTURAL‐TECHNOLOGICAL FACTORS OF EFFICIENCY OF FLOORS WITH PERMANENT REINFORCED CONCRETE FORMWORK

2005 ◽  
Vol 11 (2) ◽  
pp. 87-94
Author(s):  
Gediminas Marčiukaitis ◽  
Reda Bistrickaite
Keyword(s):  
Reinforced Concrete ◽  
Main Element ◽  
Technological Factors ◽  
Rigid Structure ◽  
Permanent Formwork

Problems associated with the development of reinforced concrete floors, the main element of a building, are considered in this article. Structural and technological factors effecting the advantages of floors with permanent formwork being the modern type of such structures are investigated. Rational diagrams, ways of manufacture and erection of these structures are presented. Essential peculiarities for design and analyses of such structures based on the investigations performed by the author and other investigators are indicated. This shall be taken into account for obtaining not only economical, but a reliable and rigid structure as well. Economical comparison of various types of floors is presented.

Sign in / Sign up

Export Citation Format

Share Document