Scientific Review Engineering and Environmental Sciences最新文献

Enhancement of tensile performance of concrete by using synthetic polypropylene fibers 合成聚丙烯纤维增强混凝土抗拉性能的研究

Scientific Review Engineering and Environmental Sciences Pub Date : 2023-10-31 DOI: 10.22630/srees.5218

Thunyawee Jienmaneechotchai, Piyawat Foytong, Pirat Khunkitti, Vanchai Sata, Prinya Chindaprasirt

{"title":"Enhancement of tensile performance of concrete by using synthetic polypropylene fibers","authors":"Thunyawee Jienmaneechotchai, Piyawat Foytong, Pirat Khunkitti, Vanchai Sata, Prinya Chindaprasirt","doi":"10.22630/srees.5218","DOIUrl":"https://doi.org/10.22630/srees.5218","url":null,"abstract":"The research attempted to investigate the effect of polypropylene fibers (PP fibers) on the mechanical characteristics of concrete. According to ASTM C39/C39M and ASTM C 1609/C1609M, standard testing methods were used to examine the concrete compressive and flexural strength, post-cracking behavior, and toughness. The mechanical properties were evaluated at different ages of concrete curing, namely 1 day, 7 days, and 28 days, and for different quantities of fiber volume portions, specifically 0.0%, 0.5%, and 1.0%. The results demonstrate that a fiber volume of 0.5% is the most effective in obtaining the highest compressive strength. The recorded values at the related testing ages were 31.07 MPa, 41.51 MPa, and 46.68 MPa. Additionally, the utilization of 0.5% and 1.0% volume of PP fiber in concrete resulted in improved flexural strength and post-cracking performance. The toughness values for these mixes were 2.0 and 2.6 times higher than those for the plain concrete. Upon analyzing the fracture surface, there was a homogeneous distribution of fibers, which played a significant role in enhancing the overall functionality of the concrete. The research validated that the inclusion of polypropylene fibers substantially enhanced the mechanical characteristics of concrete, emphasizing the potential of fiber reinforcement in concrete-based implementations.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"131 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135862970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Labor costs in a construction company in the Czech Republic – a case study 捷克共和国某建筑公司的劳动力成本—个案研究

Scientific Review Engineering and Environmental Sciences Pub Date : 2023-10-30 DOI: 10.22630/srees.5252

Gabriela Kocourkova, Eva Vitkova, Svatopluk Pelcak

引用次数: 0

A systematic review of clay shale research development for slope construction 土质页岩边坡建设研究进展综述

Scientific Review Engineering and Environmental Sciences Pub Date : 2023-10-28 DOI: 10.22630/srees.5212

Siti N. Fitri, Niken S. Surjandari, Solihin As’Ad

{"title":"A systematic review of clay shale research development for slope construction","authors":"Siti N. Fitri, Niken S. Surjandari, Solihin As’Ad","doi":"10.22630/srees.5212","DOIUrl":"https://doi.org/10.22630/srees.5212","url":null,"abstract":"The issue of stability controlling cutting slopes is particularly important in clay-shale slopes, a typical expanding sedimentary layer with poor engineering geological conditions and mechanical characteristics. Therefore, research on the causes of failure and remedies for clay-shale cutting slopes is required to serve as an overview for handling and preserving clay-shale slopes in identical conditions. However, the trusted information about the need for further related clay shale research and clay shale in slope stability has yet to be specifically presented. This review study summarizes the published research for clay shale beginning in 1980, presents a bibliometric analysis to examine the published research based on year and country, and provides various study trends in cluster diagram using the VOSviewer program. The analysis also summarized some key goals, effective methodology, and significant findings from the most recent studies to extract information from them that would benefit future research. In conclusion, the results show the need for developing research to fill the knowledge gap regarding clay shale, landslide, and clay mineralogy. In addition, the clay shale slope analysis has revealed the need for additional research into dynamic force and its deformation.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136232559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implementing GIS and linear regression models to investigate partial building failures 实施GIS和线性回归模型来调查部分建筑物的故障

Scientific Review Engineering and Environmental Sciences Pub Date : 2023-09-22 DOI: 10.22630/srees.4857

Alaa Nuri Merza, Aram Mohammed Raheem, Ibrahim Jalal Naser, Mohammed Omar Ibrahim, Najat Qader Omar

{"title":"Implementing GIS and linear regression models to investigate partial building failures","authors":"Alaa Nuri Merza, Aram Mohammed Raheem, Ibrahim Jalal Naser, Mohammed Omar Ibrahim, Najat Qader Omar","doi":"10.22630/srees.4857","DOIUrl":"https://doi.org/10.22630/srees.4857","url":null,"abstract":"One of the most dangerous field problems in the civil engineering discipline is the suddenly developed cracks in the building, which could be caused by the swelling of the subsurface soil. Thus, this work has focused on employing a procedure in the geographic information system known as the inverse distance weighted (IDW) technique, to analyze the extent of cracks in a residential complex in the city of Kirkuk in Iraq using the physical and chemical soil data for seven boreholes from the field of the study. Physical soil parameters such as liquid limit (LL), gravel, sand, silt and clay percentages were characterized first, followed by chemical properties such as gypsum content (GYP), total suspended solids (TSS), potential of hydrogen (pH), and organic content (ORG). Furthermore, statistical studies such as plasticity index (PI) and soil characteristics association, linear single, and various linear multi-regression models were used. The data analysis shows that there are significantly positive and negative relationships between PI as a swelling indicator and the physical and chemical soil properties, although weak to moderate correlations were observed between PI and these variables. The PI values were accurately predicted by the proposed linear multi-regression models of the physical and integrated physical and chemical soil characteristics, with multiple R values of 0.92 for both models. As a result, the suggested statistical models can provide complete geographic and mechanical explanations for the crack sources in the investigated residential complex.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136101110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of physical and mechanical properties of cement-treated base incorporating crushed waste tires 废轮胎碎水泥基的物理力学性能评价

Scientific Review Engineering and Environmental Sciences Pub Date : 2023-09-22 DOI: 10.22630/srees.4942

Samy Mezhoud, Hacene Badache

引用次数: 0

Potential of a linear woodland landscape element as ecological corridor for carabid beetles (Coleoptera: Carabidae): a case study from Poland 线性林地景观元素作为瓢虫(鞘翅目:瓢虫科)生态廊道的潜力:来自波兰的案例研究

Scientific Review Engineering and Environmental Sciences Pub Date : 2023-08-23 DOI: 10.22630/srees.4931

Izabela Stawska, Izabela Dymitryszyn, Axel Schwerk

引用次数: 0

Determining the influence of population density on the land surface temperature based on remote sensing data and GIS techniques: application to Prizren, Kosovo 基于遥感数据和GIS技术确定人口密度对地表温度的影响：在科索沃普里兹伦的应用

Scientific Review Engineering and Environmental Sciences Pub Date : 2022-03-04 DOI: 10.22630/srees.2324

M. Dushi, Albert Berila

{"title":"Determining the influence of population density on the land surface temperature based on remote sensing data and GIS techniques: application to Prizren, Kosovo","authors":"M. Dushi, Albert Berila","doi":"10.22630/srees.2324","DOIUrl":"https://doi.org/10.22630/srees.2324","url":null,"abstract":"The whole study was conducted for the Municipality of Prizren and aims to to determine the effect that the population density has on land surface temperature (LST). All this was achieved through the connection of land surface temperature (LST) and population density. The free Landsat 8 satellite image downloaded from the United States Geological Survey website was used and then processed using GIS and remote sensing techniques. To understand the relationship between population density and LST, we performed a regression analysis. This analysis showed a strong positive relationship with a value of r = 0.8206, emphasizing the important role that the population has in creating empowering areas that generate surface urban heat island (SUHI) effect. The results of the study clearly showed that in the northern, central, and western parts there are pixels with high LST values. This presentation corresponds with the population density, which means that it is precisely the actions of the population that help generate, display, and strengthen the harmful effect of the SUHI. The map with areas of high LST pixels are of great importance to the policymakers and urban planners of Prizren so that they can orient themselves in these areas and take all actions necessary to minimize this harmful effect which is worrying citizens. If it continues with unplanned development, the peripheral parts of Prizren are seriously endangered by the damage of the spaces which offer protection (green spaces) from the SUHI phenomenon. ","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48268940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Feasibility study of palm oil boiler ash (POBA) as a partial replacement of sand in foamed concrete 棕榈油锅炉灰（POBA）部分替代泡沫混凝土中砂的可行性研究

Scientific Review Engineering and Environmental Sciences Pub Date : 2022-02-24 DOI: 10.22630/srees.2314

Mohamed Khatif Tawaf Mohamed Yusof, S. Sharipudin, Shahrul Nizam Mohammad, A. Roslan, Z. Michael, Ilya Izyan Shahrul Azhar, Nurrul Amilin Zainal Abidin

引用次数: 0

Lockdown EffEct on caRbon monoxidE concEntRation ovER maLaySia and indonESia 封锁对马来西亚和印度尼西亚一氧化碳浓度的影响

Scientific Review Engineering and Environmental Sciences Pub Date : 2022-01-01 DOI: 10.22630/srees.2238

W. F. Wan Kamarudin, Z. Irwan, M. Yaafar, A. R. Mat Amin

{"title":"Lockdown EffEct on caRbon monoxidE concEntRation ovER maLaySia and indonESia","authors":"W. F. Wan Kamarudin, Z. Irwan, M. Yaafar, A. R. Mat Amin","doi":"10.22630/srees.2238","DOIUrl":"https://doi.org/10.22630/srees.2238","url":null,"abstract":"Coronavirus disease 2019, which is known as COVID-19, is a highly spreadable disease which was first discovered around December 2019 in Wuhan City, Hubei province, China. On 11 March 2020, the World Health Organization (WHO) had announced COVID-19 as a global pandemic as the novel coronavirus continues to spread worldwide extremely fast. Globally, up to 24 April 2021, there had been 145,216,414 confirmed cases and 3,079,390 deaths reported (World Health Organization [WHO], 2021). Malaysia, Indonesia and other southeast Asian countries had enforced lockdown at different degrees to control the spread of the disease as did many other countries around the world too. Almost all mass transportation, economic activities and social activities were prohibited by this nationwide lockdown policies as many countries had been forced to keep their citizens safe at home. Owing to the movement limitation, there had been less vehicles on the roads, many cancelled flights and restricted industrial activities which led to decreasing levels of air pollutants in the environment. As a result of this lockdown effect, there has been a benefit on human health upon reduced air pollution. Carbon monoxide (CO) is one of the air pollutants that needs to be monitored at Wan Farahiyah Wan KaMaRUDIn1 Zildawarni IRWan1 Mohd Rabani YaaFaR2 abd Rahman MaT aMIn1 1Universiti Teknologi MARA, Faculty of Applied Science, Terengganu, Malaysia 2 Universiti Teknologi MARA, Faculty of Applied Science, Perak, Malaysia","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85236486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relation between CO2 emissions and crude oil combustion in Iraq 伊拉克二氧化碳排放与原油燃烧的关系

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-10-08 DOI: 10.22630/pniks.2021.30.3.32

Ahmed S. A. Hassan, Hasan M. Azeez

{"title":"Relation between CO2 emissions and crude oil combustion in Iraq","authors":"Ahmed S. A. Hassan, Hasan M. Azeez","doi":"10.22630/pniks.2021.30.3.32","DOIUrl":"https://doi.org/10.22630/pniks.2021.30.3.32","url":null,"abstract":"Fossil fuel is the main source for CO2 emissions that causes global warming. This fact is the starting point for this paper, that consider on three different sources of data: crude oil used to calculate CO2 emissions for Iraq for the period from 1980 to 2018; annual data of total CO2 emissions available from the Carbon Dioxide Information Analysis Center (CDIAC) for Iraq and the world for the period from 1980 to 2014; and CO2 concentrations for Iraq for the period from 2002 to 2006 and for the world for the period from 1980 to 2018. The result is a multifaceted according to the dataset sources. Carbon dioxide emissions calculated from Iraqi crude oil was increased from 1.29 Mt in 2012 to 1.97 Mt in 2018. The world and Iraq CO2 emissions with different slop of average line that was 0.5 for world, 0.003 for Iraq, while increased exponential function from 2008 to 2014 to reach 36 and 0.17 Mt, respectively. The highest value of Iraqi CO2 concentration was 403 ppm in 2016, while the global CO2 concentrations slowly increased with slop line equal to 1.75 ppm per year, from minimum value of 338.6 ppm was in 1980, while maximum value of 407.05 ppm was in 2018, that’s mean no decreased in CO2 concentration unless emissions addressed.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68303708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0