scholarly journals FACE Report Visual Extension: laborer, pipefitter, and utility foreman crushed by falling block wall - Tennessee.

2020 ◽  
Keyword(s):  
Block Wall

Study on heat transfer characteristics of straw block wall in solar greenhouse

2017 ◽  
Vol 139 ◽  
pp. 91-100 ◽  
Author(s):  
Jian Zhang ◽  
Jian Wang ◽  
Shirong Guo ◽  
Bin Wei ◽  
Xiangli He ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Characteristics ◽  
Transfer Characteristics ◽  
Solar Greenhouse ◽  
Block Wall

Experimental Study on Seismic Behavior of Small-Sized Fly Ash Hollow Block Wall

2012 ◽  
Vol 446-449 ◽  
pp. 418-423
Author(s):  
Ming Xu ◽  
Zhu Peng ◽  
Meng Jing Chen ◽  
Zhong Fan Chen
Keyword(s):  
Mechanical Properties ◽  
Experimental Study ◽  
Fly Ash ◽  
Seismic Behavior ◽  
Ultimate Load ◽  
Failure Characteristics ◽  
Process Failure ◽  
Work Mechanism ◽  
Hollow Block ◽  
Block Wall

Based on the experiment of five full-scale small-sized fly ash hollow block walls under low-cycle reversed load, the influence of aspect ratio, common horizontal reinforcement, size of structural column section to the loading process, failure characteristics, cracking load, ultimate load, deformation, ductility, stiffness and energy dissipation of the walls was studied. Simultaneously the mechanical properties and work mechanism of the small-sized fly ash hollow block wall has been analyzed.

Parametric study of the impact of building envelope systems on embodied and operational carbon of residential buildings

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Amneh Hamida ◽  
Abdulsalam Alsudairi ◽  
Khalid Alshaibani ◽  
Othman Alshamrani
Keyword(s):  
Saudi Arabia ◽  
Residential Buildings ◽  
Building Envelope ◽  
Base Case ◽  
Content Type ◽  
Embodied Carbon ◽  
Block Wall ◽  
Shading Device ◽  
The Impact ◽  
Total Life

PurposeBuildings are responsible for the consumption of around 40% of energy in the world and account for one-third of greenhouses gas emissions. In Saudi Arabia, residential buildings consume half of total energy among other building sectors. This study aims to explore the impact of sixteen envelope variables on the operational and embodied carbon of a typical Saudi house with over 20 years of operation.Design/methodology/approachA simulation approach has been adopted to examine the effects of envelope variables including external wall type, roof type, glazing type, window to wall ratio (WWR) and shading device. To model the building and define the envelope materials and quantify the annual energy consumption, DesignBuilder software was used. Following modelling, operational carbon was calculated. A “cradle-to-gate” approach was adopted to assess embodied carbon during the production of materials for the envelope variables based on the Inventory of Carbon Energy database.FindingsThe results showed that operational carbon represented 90% of total life cycle carbon, whilst embodied carbon accounted for 10%. The sensitivity analysis revealed that 25% WWR contributes to a significant increase in operational carbon by 47.4%. Additionally, the efficient block wall with marble has a major embodiment of carbon greater than the base case by 10.7%.Research limitations/implicationsThis study is a contribution to the field of calculating the embodied and operational carbon emissions of a residential unit. Besides, it provides an examination of the impact of each envelope variable on both embodied and operational carbon. This study is limited by the impact of sixteen envelope variables on the embodied as well as operational carbon.Originality/valueThis study is the first attempt on investigating the effects of envelop variables on carbon footprint for residential buildings in Saudi Arabia.

scholarly journals Development and Performance Test including Mechanical and Thermal of New Tenon Composite Block Masonry Walls

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Hui Su ◽  
Dongyue Wu ◽  
Mengying Shen ◽  
Wei Chen ◽  
Shilin Wang
Keyword(s):  
Thermal Performance ◽  
Performance Test ◽  
Concrete Block ◽  
Masonry Walls ◽  
Design Code ◽  
Concrete Material ◽  
Mixing Ratios ◽  
Block Wall ◽  
Common Block ◽  
And Performance

To improve the thermal performance of external masonry walls, a new tenon composite block is proposed as the external maintenance component which contains the internal hollow concrete block part, the external block part, and the extruded polystyrene layer fixed by tenons. The production process and concrete material mixing ratio were optimized for the new tenon composite block to promote its application. The mechanical strength and thermal properties of the optimized tenon composite blocks were tested with experiments and numerical simulation in this study. The testing and simulation results indicated that after utilizing the two optimized concrete mixing ratios, the tenon composite block strength matched the strength requirements according to the related design code. The thermal performance of the tenon composite block wall was also good compared with that of a common block wall.

Experimental Study on Compressive Property of New Concrete Block Masonry with Multi-Row Cores

2014 ◽  
Vol 501-504 ◽  
pp. 461-465
Author(s):  
Zhao Yan Cui ◽  
Fu Sheng Liu ◽  
Shun Ke Zhang
Keyword(s):  
Energy Saving ◽  
Diffusion Mechanism ◽  
Concrete Block ◽  
Compressive Property ◽  
Insulation Material ◽  
Test Results ◽  
Failure Characteristics ◽  
New Energy ◽  
Heat Insulation Material ◽  
Block Wall

With the development of energy-saving in buildings, new energy-saving block masonry with multi-row cores is commonly used. In this paper, from the study of typical bearing capacity of multi hole concrete block masonry of combining multiple rows of holes, holes in the multi block wall masonry capacity test of heat insulation material characteristics. Test results show that, in the process of multi hole masonry brittle failure characteristics, built-in straw block in the insulation at the same time, can improve the compressive strength of masonry; masonry local diffusion mechanism under the action of stress is significant; and offer the engineering measures.

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