Surface Reinforced Concrete Masonry Units
- 详细技术说明
- The purpose of this invention is to improve Concrete Masonry Units (CMU) so they can be reinforced on the surface; therefore, increasing the loadbearing and flexural capacity of walls constructed using SRCMU, and reducing materials used in constructing the wall.
- *Abstract
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The purpose of this invention is to improve Concrete Masonry Units (CMU) so they can be reinforced on the surface; therefore, increasing the loadbearing and flexural capacity of walls constructed using SRCMU, and reducing materials used in constructing the wall.Existing CMUs have two hollow cores and are fabricated with two exterior flat surfaces. When constructing a wall using CMUs they are typically assembled by placing reinforcement and grout in the center of each core. The reinforcement is introduced into the assembly to enable the wall to resist tension stress while the grout is necessary to create a bond between the reinforcement and the concrete blocks. The reinforcement is placed in the centre axis of the block which is also the neutral axis on the wall as a flexural member. When the reinforcement in a flexural member is placed close to the neutral axis it does very little work as the tension stress is zero at the neutral axis. Placing the reinforcement at the centre of the wall also allows the wall to crack at the tension side before the reinforcement is working. Cracking of a concrete block wall considerably reduces its durability and increases the operations and maintenance costs while also reducing the design life of the structure. To summarize the issues with the existing system is as follows: . Tension reinforcement has to be placed at a location where there is no tension stress. In order to create a bond between the reinforcement and the block the core has to be filed with grout increasing material use and self-weight of the structure. This directly increases the cost of the building and carbon footprint of the construction.The SRCMU is unique in its fabrication as it has vertical grooves on one or both exterior surfaces. The grooves will line up both in running bond and stack bond formation. The continuous groove on the surface of the wall will enable designers and engineers to specify the placement of the reinforcement on the surface of the tension side of the wall. Therefore, the reinforcement is placed at the extreme fiber on the tension side. Where it is most efficient or "works" the most. Placing the reinforcement on the tension side stops the tension cracking of the wall therefore increasing the design life of the structure. The reinforcement for SRCMU can be FRP or traditional steel bars. FRP reinforcement can be applied with resin containing fire retardant.
- *Inquiry
- Jody Dexter,Ph.DTechnology ManagerPh:+1(204)474.8966Email: jody.dexter@umanitoba.ca
- 附加资料
- Inventor: LOCKLIN, Jason | HARDIN, Ian | SAMANTA, Satya | DHENDE, Vikram
Priority Number: WO2010096444A4
IPC Current: C08G007302 | C08J000324 | C08J000704 | C08L007902
Assignee Applicant: University of Georgia Research Foundation Inc.
Title: PHOTOCHEMICAL CROSS-LINKABLE POLYMERS, METHODS OF MAKING PHOTOCHEMICAL CROSS-LINKABLE POLYMERS, AND METHODS OF USING PHOTOCHEMICAL CROSS-LINKABLE POLYMERS | POLYMÈRES RÉTICULABLES PHOTOCHIMIQUES, PROCÉDÉS DE FABRICATION DE POLYMÈRES RÉTICULABLES PHOTOCHIM
Usefulness: PHOTOCHEMICAL CROSS-LINKABLE POLYMERS, METHODS OF MAKING PHOTOCHEMICAL CROSS-LINKABLE POLYMERS, AND METHODS OF USING PHOTOCHEMICAL CROSS-LINKABLE POLYMERS | POLYMÈRES RÉTICULABLES PHOTOCHIMIQUES, PROCÉDÉS DE FABRICATION DE POLYMÈRES RÉTICULABLES PHOTOCHIMIQUES ET PROCÉDÉS D'UTILISATION DE POLYMÈRES RÉTICULABLES PHOTOCHIMIQUES
Summary: The polymer is useful for disposing on a surface comprising a polymer surface, a metal surface having a functionalized layer on the surface, or a glass surface having a functionalized layer on the surface, to produce a structure, which is a fabric, a textile article, a natural fiber, a synthetic fiber, a porous membrane, a plastic structure, a oxide structure having a functionalized layer on the surface of the structure, a metal structure having a functionalized layer on the surface of the structure and/or a glass structure having a functionalized layer on the surface of the structure (all claimed).
Novelty: New polymer comprising polyethylenimine polymer that has quaternized with a hydrophobic side chain moiety and a photo crosslinkable moiety, useful for disposing on a surface e.g. glass surface, to produce a structure e.g. porous membrane
- 主要类别
- 化工/材料
- 细分类别
- 化工/材料应用
- 国家/地区
- 美国
