Behaviour of peat-added composite bricks in low-cost building construction

2014 ◽  
Vol 18 (sup6) ◽  
pp. S6-1-S6-5
Author(s):  
Syed Mofachirul Islam ◽  
Roslan Hashim ◽  
A. B. M. Saiful Islam
Keyword(s):  
Low Cost ◽  
Building Construction

FEASIBILITY ANALYSIS OF AN AUTOMATED DETECTION OF PHYSICAL DEFECT VIA COMPUTER VISION

2015 ◽  
Vol 76 (12) ◽  
Author(s):  
Por Jing Zhao ◽  
Shafriza Nisha Basah ◽  
Shazmin Aniza Abdul Shukor
Keyword(s):  
Computer Vision ◽  
Low Cost ◽  
Image Data ◽  
Automated Detection ◽  
Building Construction ◽  
High Demand ◽  
Major City ◽  
Cost System ◽  
Kinect Camera ◽  
Wall Condition

High demand of building construction has been taking places in the major city of Malaysia. However, despite this magnificent development, the lack of proper maintenance has caused a large portion of these properties deteriorated over time. The implementation of the project - Automated Detection of Physical Defect via Computer Vision - is a low cost system that helps to inspect the wall condition using Kinect camera. The system is able to classify the types of physical defects -crack and hole - and state its level of severity.The system uses artificial neural network as the image classifier due to its reliability and consistency. The validity of the system is shown using experiments on synthetic and real image data. This automated physical defect detection could detect building defect early, quickly, and easily, which results in cost saving and extending building life span. 

scholarly journals Collapse Potential of Loess under Unloading Effect

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Xin Jin ◽  
Tie-Hang Wang ◽  
Zai-Kun Zhao ◽  
Liang Zhang ◽  
Yan-Zhou Hao
Keyword(s):  
Low Cost ◽  
Initial Pressure ◽  
Threshold Value ◽  
Building Construction ◽  
Stress Variation ◽  
Collapse Potential ◽  
Evaluation Scheme ◽  
Practical Project ◽  
Collapsible Loess ◽  
Collapse Process

Collapsible loess is generally characterized by a sudden and substantial decrease in volume that occurs when is applied under constant stress. To evaluate the loess collapse potential, the self-weight collapse and collapse coefficients have been defined by the code for building construction in collapsible loess regions. However, the method in the code does not account for the vertical stress variation. The loess collapse process commonly occurs with stress variation in practice. This paper documents a low-cost, quantitative evaluation scheme using regression analysis to evaluate the loess collapse potential by varying the unloading levels. The results show that the factors that prominently account for loess collapse deformation are the initial pressure, unloading ratio, and collapse completed-ratio. At a constant collapse-completed ratio, the remnant collapse coefficient significantly decreases with the decreasing unloading ratio; at a constant unloading ratio, the remnant collapse coefficient increases with a decreasing collapse-completed ratio. Decreasing unloading and collapse-completed ratios decreased the loess collapse potential with an initial pressure that exceeds the threshold value. Finally, an unloading collapse deformation calculation of loess was prepared to analyze practical project problems of loess based on the unloading collapse test.

scholarly journals Appropriate Green Materials for Affordable Building Construction in Nigeria

2019 ◽  
Vol 8 (4) ◽  
pp. 986-991
Keyword(s):  
Low Income ◽  
Structural Equation ◽  
Building Materials ◽  
Low Cost ◽  
Central Zone ◽  
Green Building ◽  
Building Construction ◽  
High Price ◽  
North Central ◽  
Green Materials

There are severe issues for the deficiency of affordable house for low-income earners in developing countries such as Nigeria. The high cost of conventional materials has been established to be one the major factors that heightened the cost of building in recent times. However the integration of green building materials that are relevant and sustainable for building construction in the present dispensation will provide excellent solutions to overcome high price of construction. The study was carried out on all the available green materials in north-central Nigeria. Surveyed instrument was prepared and distributed to building professional experts that are registered member of various professional bodies in the building sector. Four hundred questionnaires were distributed in the north-central zone. Three hundred five questionnaires that were filled correctly was used for the data analyses. Analysis of moments (AMOS) software through the structural equation model (SEM) was used to analysis and generated a model for the study. The result discloses that earth bricks, stone/rocks, timber, Bamboo, thatches, straw fibre, and rice husk are very relevant green materials that can be used to achieve affordable building construction. Therefore, the use and integration of green materials in building construction will produce low cost housing units

Tracking major resources for automated progress monitoring of construction activities: masonry work case

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Gursans Guven ◽  
Esin Ergen
Keyword(s):  
Material Handling ◽  
Field Experiments ◽  
Progress Monitoring ◽  
Low Cost ◽  
Work Practice ◽  
Building Construction ◽  
Sensor Data ◽  
Content Type ◽  
Multiple Resources ◽  
Field Experimentation

Purpose The purpose of this study is to monitor the progress of construction activities in an automated way by using sensor-based technologies for tracking multiple resources that are used in building construction. Design/methodology/approach An automated on-site progress monitoring approach was proposed and a proof-of-concept prototype was developed, followed by a field experimentation study at a high-rise building construction site. The developed approach was used to integrate sensor data collected from multiple resources used in different steps of an activity. It incorporated the domain-specific heuristics that were related to the site layout conditions and method of activity. Findings The prototype estimated the overall progress with 95% accuracy. More accurate and up-to-date progress measurement was achieved compared to the manual approach, and the need for visual inspections and manual data collection from the field was eliminated. Overall, the field experiments demonstrated that low-cost implementation is possible, if readily available or embedded sensors on equipment are used. Originality/value Previous studies either monitored one particular piece of equipment or the developed approaches were only applicable to limited activity types. This study demonstrated that it is technically feasible to determine progress at the site by fusing sensor data that are collected from multiple resources during the construction of building superstructure. The rule-based reasoning algorithms, which were developed based on a typical work practice of cranes and hoists, can be adapted to other activities that involve transferring bulk materials and use cranes and/or hoists for material handling.

scholarly journals Competitive Performance Is Affected By A Competitive Strategy With Supply Chain Moderates

2020 ◽  
Vol 1 (4) ◽  
pp. 185-192
Author(s):  
Herlin Rosalina Febriyanti Herlin ◽  
Elva Nuraina Elva ◽  
Nur Wahyuning Sulistyowati Nur
Keyword(s):  
Supply Chain ◽  
Quantitative Research ◽  
Low Cost ◽  
Sampling Technique ◽  
Building Construction ◽  
Company Performance ◽  
Simple Linear Regression ◽  
Competitive Strategies ◽  
Relationship Of ◽  
The Relationship

This study aims to examine the effect of competitive strategies on company performance with supply chains as moderating. This type of research is quantitative research. The sampling technique was purposive sampling. Data analysis techniques used simple linear regression and subgroups using Moderated Regression Analysis. The results of the study show that competitive strategies have an effect on company performance. Supply chain as a moderating variable strengthens the relationship of competitive strategies to company performance. Low cost strategies and differentiation are used in measuring competitive strategies. Where differentiation strategies are more applied than low cost strategies due to the object of research in the fields of property, real estate, building construction that produces limited and unique products at high costs.

Calculation and Analysis of Hydraulic Automatic Climbing Formwork Equipment for Super-high Building Construction

2021 ◽  
Vol 62 (1) ◽  
pp. 24-36
Author(s):  
Ju-wei Xia ◽  
Yun-long Yao ◽  
Xiao-shun Wu ◽  
Yuan-hong Chen
Keyword(s):  
Analytical Method ◽  
Low Cost ◽  
Reaction Force ◽  
Building Construction ◽  
High Rise ◽  
Approximate Analytical Method ◽  
Quantitative Calculation ◽  
Analysis Process ◽  
Calculation Results ◽  
High Building

Hydraulic automatic climbing formwork equipment is widely used in super-high-rise building construction due to its advantages of simple operation, fast construction speed, low cost, and high automation. Quantitative calculation of the mechanical state of climbing formwork equipment is an important technical means of ensuring safety during super-high building construction. This work thus introduces a hydraulic climbing formwork equipment structure and subsequently analyzes the construction process and the main working state of the hydraulic climbing formwork equipment. Then, for the design of the outer climbing frame of the hydraulic climbing formwork, an approximate analytical method for solving the node reaction force is proposed. Finally, combined with the actual engineering, the calculation results of the approximate analytical method and the finite element method are compared, and the calculation and analysis methods of the hydraulic climbing formwork equipment frame and key nodes are introduced. The calculation analysis process and related conclusions can be used as engineering reference for similar projects.

Incorporation of Fired Ceramic Waste into Binary and Ternary Earth-Binder (S) Mixtures for Compressed Blocks

2014 ◽  
Vol 798-799 ◽  
pp. 498-502
Author(s):  
Wilson Acchar ◽  
Jaquelígia B. Silva ◽  
Vamberto M. Silva ◽  
Luciano Costa Góis ◽  
Ana M. Segadães
Keyword(s):  
Construction Industry ◽  
Low Income ◽  
Low Cost ◽  
Building Construction ◽  
Construction And Demolition Waste ◽  
Ambient Conditions ◽  
Demolition Waste ◽  
Waste Dumps ◽  
Compressed Earth Blocks ◽  
Earth Blocks

In Brazil, the majority of construction and demolition waste materials (CDW) is sent to waste dumps or landfill sites. Having low cost applications in mind, this work has the purpose of investigating the effect of the incorporation of fired ceramic rubble reclaimed from CDW obtained directly from the building construction industry on the final properties of compressed earth blocks, which are especially interesting in low-income and marginalized communities. To this aim, clay-based mixtures containing up to 5 wt.% of ceramic rubble were prepared. Lime and cement were added as binders (6, 8, 10 and 12 wt.%). Cylindrical test pieces were produced by uniaxial compression and left to harden at ambient conditions for 7, 28 and 56 days. The hardened specimens were characterized in terms of microstructure (SEM), compressive strength, water absorption and wear resistance. The results obtained in physical and mechanical evaluation tests demonstrated that small contents of ceramic rubble from the building construction industry can easily be incorporated into compressed earth blocks without degradation of typical properties, enabling savings in cement addition.

Thermo-physical analysis of low-cost ecological composites for building construction

2018 ◽  
Vol 20 ◽  
pp. 762-775 ◽  
Author(s):  
R. Tiskatine ◽  
N. Bougdour ◽  
R. Oaddi ◽  
L. Gourdo ◽  
Y. Rahib ◽  
...  
Keyword(s):  
Low Cost ◽  
Building Construction ◽  
Physical Analysis

scholarly journals Are House Alterations Sustainable?

2018 ◽  
Vol 3 (6) ◽  
pp. 29
Author(s):  
Zarina Isnin ◽  
Rohaslinda Ramli ◽  
Ahmad Ezanee Hashim ◽  
Irwan M. Ali
Keyword(s):  
Low Cost ◽  
Publishing House ◽  
Health And Safety ◽  
Building Construction ◽  
Safety Requirements ◽  
Safety And Health ◽  
International Publishing ◽  
Low Cost Housing ◽  
Materials Used ◽  
Open Access Article

House alterations have always been associated with sustainability for the future. However, a research at three low cost housing schemes in Shah Alam, Malaysia involving residences, housing contractors and neighbours showed that the construction activities or materials used caused problems and risks to social health, safety and the environment. These problems are related to lack of knowledge, skills and experiences in the building construction. Despite the presence of health and safety requirements, there remains a significant scope for improvement in Malaysia. From the findings, several recommendations are made to improve the living conditions for a sustainable future. Keywords: low cost housing; safety and health risks; sustainable house alteration eISSN 2514-7528 © 2018. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.

Lightweight Building Materials of Geopolymer Reinforced Wood Particles Aggregate – A Review

2015 ◽  
Vol 802 ◽  
pp. 220-224 ◽  
Author(s):  
Siti Noorbaini Sarmin
Keyword(s):  
Mechanical Properties ◽  
Building Materials ◽  
Ordinary Portland Cement ◽  
Low Cost ◽  
Construction Materials ◽  
Building Construction ◽  
Alkali Activation ◽  
Cement Based Materials ◽  
Wood Particles ◽  
Thermal Insulations

Lightweight constructions materials provide better thermal insulations properties for buildings. Using lightweight’s aggregates, such like wood particles is one of the most common ways for making lightweight building materials. The low cost and availability of wood particles made it the best ultimate materials preference in production of composites construction materials. Geopolymer, the alkali-activation cement-based materials have been proven can be used to produce lightweight materials. In additional, geopolymer possess excellent mechanical properties and significant reduction in CO2 emissions compare to ordinary Portland cement. The use of environmentally friendly building construction materials has become increasingly important. This paper presents a review on producing lightweight building materials from geopolymer with wood particles as an aggregate.

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