Seyedmohammad Kahangi Shahreza

Seyedmohammad Kahangi Shahreza
Lund University | LU · Division of Structural Engineering

Master of Science

About

9
Publications
627
Reads
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46
Citations
Introduction
Seyedmohammad does research in Structural Engineering and Civil Engineering.
Additional affiliations
April 2017 - May 2018
University of Bologna
Position
  • Research Assistant
September 2016 - March 2017
University of Bologna
Position
  • Research Assistant
Education
September 2013 - March 2016
University of Bologna
Field of study
  • Civil Engineering (Structural Engineering Curriculum)
September 2008 - June 2012
University of Birjand
Field of study
  • Civil Engineering

Publications

Publications (9)
Thesis
Clay brick masonry façades are commonly used due to their high-performance durability. However, exposure to climate agents such as wind-driven rain (WDR), freeze-thaw cycles, and wind abrasion cause deterioration of masonry façades over time. WDR as a significant source of moisture may contribute to the erosion of mortar joints and lead to increase...
Article
In this study, we performed an experimental investigation of water absorption and penetration in clay brick masonry exposed to cyclic water spraying by employing a newly developed test setup. Several parameters, including brick absorption properties and different mortar joint profiles, were investigated. The specimens were exposed to a uniform wate...
Article
This paper presents an experimental study carried out to investigate the behavior of concentrically loaded concrete columns confined with steel-reinforced polymer (SRP) jackets. Several parameters, i.e. size of the specimen, shape of the cross-section, number of layers, and density of steel fiber sheet are investigated. Axial and hoop strain contou...
Article
This paper presents an investigation on the compressive behavior of plain concrete columns confined with steel-reinforced grout (SRG) composites. The test parameters include size and crosssectional shape (square or circular) of the columns, and number of layers (one or two) and density (low or medium density) of the steel fiber sheet. Out of 46 spe...
Conference Paper
Use of clay brick masonry in façades is often motivated by its aesthetic values and durability. Yet, mortar joints exposed to climate agents erode over time, expected to cause elevated moisture content and water absorption. Thus, it is often recommended that 40- to 50-year-old facades should be repointed – a measure which is intrusive and costly. D...
Chapter
Use of clay brick masonry in façades is often motivated by its aesthetic values and durability. Yet, mortar joints exposed to climate agents erode over time, expected to cause elevated moisture content and water absorption. Thus, it is often recommended that 40- to 50-year-old facades should be repointed – a measure which is intrusive and costly. D...
Article
Fiber Reinforced Cementitious Matrix (FRCM) composite materials represent a recent strengthening technique, which can provide a complex scenario of different mechanical behaviors and failure mechanisms. The presented experimental study is aimed at improving the knowledge about the tensile and bond behavior of FRCMs with a focus, in particular, on t...
Conference Paper
Strengthening and rehabilitation of existing masonry buildings is a topic that attracts the interest of the scientific community worldwide. Fiber reinforced polymer (FRP) composites have been largely employed for structural rehabilitation of masonry structures due to their ease of installation and their high strength-to-weight ratio, since the end...

Questions

Questions (2)
Question
I would like to know what is the best software to model water absorption of a brick masonry?
Which one of CFD or HAM theoretical aspects must be taken into account?
Actually, in our experimental campaign, masonry blocks built with three clay bricks are subjected to a rain episode and the amount of absorbed water after each test is measured. I would like to know it is possible to model this study and verify its result numerically?
Question
Decision concerning the need for repointing is often based on general maintenance recommendations taking into account the time elapsed from erection, the previous repointing of the façade, or the presence of cracks and eroded mortar.
These recommendations are usually qualitative and do not prove the real need of Repointing. It would be great if there are any available literature concerning decision making on Repointing based on quantitative parameters such as degree of erosion, size and type of cracks, deterioration of hygro-thermal performance and etc.
Thanks in advance.

Network

Cited By

Projects

Project (1)
Project
This project aims to develop a rational knowledge base for improved decision making in relation of the maintenance of clay brick facades and particularly concerning the need for repointing. To achieve this, an objective and systematic approach is desired, both in relation to if and when repointing is carried out as well as concerning the suitability and durability performance of standard repointing materials and techniques. Deterioration of clay brick façades and erosion of the mortar joints are ubiquitous problems in practice owing to the adverse environmental exposures such as wind-driven rain (WDR); a particular issue in Northern Europe. To ensure the continued durability of deteriorated clay facades, it is essential that repointing of the existing mortar joints with new mortars is carried out using materials and methods that are compatible with both units and existing mortar in the joints. The objectives of this project are to investigate the effects of relevant parameters such as wind-driven rain, repeated wetting and drying cycles, mechanical properties of brick and mortar, joint tooling, and general workmanship on the durability performance of clay brick façades. These investigations will include an experimental campaign together with numerical simulations; model verification and validation will be sought through reality checks of real world facades. Finally, the results can be reviewed and adapted for inclusion in practical guidelines/recommendations which aim to provide rational and improved decision support to landlords, façade constructors and craftsmen on repointing of clay brick facades.