Abdur Razzak Zubaer - Academia.edu (original) (raw)
Papers by Abdur Razzak Zubaer
This study evaluates the current state of Dhaka's potable water and sanitation amenities. Moreove... more This study evaluates the current state of Dhaka's potable water and sanitation amenities. Moreover, the study addresses 6.1 and 6.2 of Sustainable Development Goal 6, which calls for optimal sanitation services and present conditions regarding water quality in Dhaka. In addition, the DWASA is the sole provider of potable water in the city, and as such, they are having a hard time keeping up with the demand for potable water. In addition, a significant number of private residences lack access to potable water and sanitary sanitation services on their properties. In order to complete this study, primary data were gathered through the use of questionnaire surveys, and informal interviews with experts; and secondary data were analyzed. The result is analyzed in three sections in which the first section shows the analysis regarding the privileged class, another one shows the underprivileged class analysis and the third one shows the combination of both. By breaking down the results, it is observed that the situation is way better than before in terms of consuming water from the improved sources, though the sanitation amenities need to be improved a lot though the progress is impressive. The study reveals that there is discrimination based on gender, economic capacity, and social standing for access to potable water and sanitary sanitation amenities. In addition, private-public partnerships can significantly enhance the current state of affairs. The report also recommends a number of activities to be taken conducive to outreach of the milestones attained in Dhaka.
Zenodo (CERN European Organization for Nuclear Research), Feb 15, 2022
In Bangladesh, there are a consequential proportion of the population is without access to salubr... more In Bangladesh, there are a consequential proportion of the population is without access to salubrious water sources and to lead a healthy and productive life humans need a salubrious source of water is a requisite. To consummate the deficit of salubrious water rooftop rainwater harvesting (RRWH) can be the alternative to underground water. RRWH can be legitimated as an appropriate alternative for groundwater because of the lofty yearly precipitation rate in Bangladesh. In addition, there is a massive gap between requisite and repository for fresh water and the situation seems vulnerable that can be deteriorated in the future. The current situation is distressful and this challenge needs to sort out properly otherwise it can prove a threat to mankind. Perhaps, as the present and future of the treatment of surface water is not blazing and the dependency on groundwater has to lessen so RRWH can be proved as the potent alternative. This study investigates the reliability, applicability of RRWH systems using daily water balance for an educational institute. The reliability co-relations with the different tank volumes indicate that both the time base and volumetric reliability rise with the increase of tank volume. Reliability does not rise with the upsurging consumed water value. But both time-based reliability and volumetric reliability lessen with the upsurging water demand. It can also be observed time-based reliability is greater than volumetric reliability and the overflow ratio decreases with the increases of tank volume. Besides, average water-saving increases with the increase of tank volume. RRWH has the potential to solve the water deficit problem in an educational institute for toilet flushing and floor cleaning purposes by meeting 22354 lit/day water demand.
Zenodo (CERN European Organization for Nuclear Research), Jul 10, 2023
The terms "climate change" and "climate change impacts" " have become ubiquitous in the 21st cent... more The terms "climate change" and "climate change impacts" " have become ubiquitous in the 21st century. Even though they are not the primary contributors to the problem, low-lying and developing nations like Bangladesh are bearing the brunt of the consequences of climate change. Nevertheless, the purpose of this research is to evaluate the two distinctly distinct regions with regard to the effects that climate change has had on a variety of meteorological parameters (temperature, rainfall rate, relative humidity, wind speed, and direction). The research was carried out using previously obtained data over a long period of time from the Bangladesh Meteorological Department (BMD) as well as reports that were previously published. Using the collected data, a regression analysis is performed, and it is shown that both Dhaka and Khulna stations are experiencing temperature increases that are greater than 1.5 degrees Celsius. However, in accordance with the international agreement known as the "Paris Agreement" the target is to restrict the rise in global temperature to no more than 1.5 degrees Celsius. In contrast to the temperature, the rate of rainfall is increasing in the Khulna station, whereas it is decreasing in the Dhaka station. On the other hand, relative humidity and wind speed are both going in the downward trendline at both stations. On the contrary,, it has been determined that Khulna station is more susceptible to the effects of climate change than Dhaka station.
Journal of Environmental Issues and Climate Change
This study evaluates the current state of Dhaka's potable water and sanitation amenities. Mor... more This study evaluates the current state of Dhaka's potable water and sanitation amenities. Moreover, the study addresses 6.1 and 6.2 of Sustainable Development Goal 6, which calls for optimal sanitation services and present conditions regarding water quality in Dhaka. In addition, the DWASA is the sole provider of potable water in the city, and as such, they are having a hard time keeping up with the demand for potable water. In addition, a significant number of private residences lack access to potable water and sanitary sanitation services on their properties. In order to complete this study, primary data were gathered through the use of questionnaire surveys, and informal interviews with experts; and secondary data were analyzed. The result is analyzed in three sections in which the first section shows the analysis regarding the privileged class, another one shows the underprivileged class analysis and the third one shows the combination of both. By breaking down the results, ...
Zenodo (CERN European Organization for Nuclear Research), Feb 10, 2023
The motive of this investigation is to assess whether the objectives of Sustainable Development G... more The motive of this investigation is to assess whether the objectives of Sustainable Development Goal 6 have been met by orienting them with current actions taken by a variety of ministries and divisions in Bangladesh. In addition to this, it investigates the institutional difficulties connected with the execution of Sustainable Development Goal 6. Several methods were utilized in this investigation for the purpose of examining both primary and secondary data. The actions that were taken by the numerous ministries and divisions of Bangladesh resonated, to a certain extent, with 8 of SDG 6's targets and 11 of its indicators. Because of unclear responsibilities assigned to various ministries and divisions, there is now overlapping jurisdiction, which has led to competing interests and a general lack of cohesiveness. When it comes to reaching the goals that have been established for Sustainable Development Goal 6, the most significant institutional bottlenecks include imprecise stakeholder investigation, a scarcity of data availability, a scarcity of competency and obedience, and a peak-to-bottom strategy outlook. The primary objective of the study is to identify the significant obstacles that must be overcome in order to successfully complete the indicators. In addition, some suggestions are offered in order to enhance the procedures and ensure that the milestone is reached within the allotted amount of time.
Malaysian Journal of Civil Engineering
In this present study, a numerical analysis has been performed to compare the shear resisting cap... more In this present study, a numerical analysis has been performed to compare the shear resisting capacities between beams with conventional loop stirrup and inclined stirrup. Resisting the shear force is one of the key features of stirrups. A rarely used and uncommon inclined stirrup setup is analyzed in this study and new findings are compared with the results of loop stirrup. Two sets of beams (150x300x1960mm) are analyzed to determine the ultimate shear force resisting capacities, displacement, and stress resistance capacities. It was observed that the beam with an inclined stirrup showed ultimate shear resistance up to 187.24 KN compared to the beam with a loop stirrup setup which was 114.24 KN. Displacement of the inclined stirrup setup and the loop stirrup setup was 2.38 mm and 4.21 mm. Stress resistance and distribution pattern was also improved upon using inclined stirrup. Flexural and Shear Crack patterns of the beams at the ultimate load are also predicted from numerical ana...
This study is associates the pedestrian behavior and preferences during using the foot overbridge... more This study is associates the pedestrian behavior and preferences during using the foot overbridge in three different sites of Dhaka city. All the surveyed sites are the same in characteristics. The data was attained on weekdays (peak hours) using the conventional road survey method. The pie chart is used to represent pedestrian's verdict on diverse factors. One way ANOVA test is done with the surveyed data to analyze the significance of pedestrians' gender, age, and profession over 8 different factors. After analyzing the data it's known that the highest percentage of female pedestrians use the foot over-bridge at site 3. Students, service holders, and businessmen use the foot over-bridge most. In addition, it's seen that age group in between 18-25 prefer to use foot over-bridge while crossing the road and all the foot over-bridges at site 1, site 2, and site 3 are safe, comfortable, time saver to the maximum pedestrians. Furthermore, pedestrians ponder foot over-bri...
Affiliated with the increase of construction and demolition of the structural projects in the who... more Affiliated with the increase of construction and demolition of the structural projects in the whole world along with Bangladesh, the country is producing a whale of Construction and Demolition (C and D) waste every year. But the colossal anxiety is that these huge amounts of C and D wastes are not managed well. Besides, sand mining is at its peak in Bangladesh because of the demand in the market. The effect of sand mining is the reason for many adverse effects on the ecology of the river including degrading the water quality of the river, changing the physical quality of the river, decreasing the river flow, riverbank erosion, and riverbank slump. That's why Recycled Fine Aggregate (RFA) can be the future in the construction industry. But this study mainly focuses on using RFA as a substitute for the filling sand as well as an alternate of Improved Subgrade (ISG). For this purpose, demolished concrete blocks were collected and turned into RFA to evaluate their engineering proper...
Zenodo (CERN European Organization for Nuclear Research), Feb 15, 2022
In Bangladesh, there are a consequential proportion of the population is without access to salubr... more In Bangladesh, there are a consequential proportion of the population is without access to salubrious water sources and to lead a healthy and productive life humans need a salubrious source of water is a requisite. To consummate the deficit of salubrious water rooftop rainwater harvesting (RRWH) can be the alternative to underground water. RRWH can be legitimated as an appropriate alternative for groundwater because of the lofty yearly precipitation rate in Bangladesh. In addition, there is a massive gap between requisite and repository for fresh water and the situation seems vulnerable that can be deteriorated in the future. The current situation is distressful and this challenge needs to sort out properly otherwise it can prove a threat to mankind. Perhaps, as the present and future of the treatment of surface water is not blazing and the dependency on groundwater has to lessen so RRWH can be proved as the potent alternative. This study investigates the reliability, applicability of RRWH systems using daily water balance for an educational institute. The reliability co-relations with the different tank volumes indicate that both the time base and volumetric reliability rise with the increase of tank volume. Reliability does not rise with the upsurging consumed water value. But both time-based reliability and volumetric reliability lessen with the upsurging water demand. It can also be observed time-based reliability is greater than volumetric reliability and the overflow ratio decreases with the increases of tank volume. Besides, average water-saving increases with the increase of tank volume. RRWH has the potential to solve the water deficit problem in an educational institute for toilet flushing and floor cleaning purposes by meeting 22354 lit/day water demand.
Asian journal of civil engineering, Feb 22, 2024
This study evaluates the current state of Dhaka's potable water and sanitation amenities. Moreove... more This study evaluates the current state of Dhaka's potable water and sanitation amenities. Moreover, the study addresses 6.1 and 6.2 of Sustainable Development Goal 6, which calls for optimal sanitation services and present conditions regarding water quality in Dhaka. In addition, the DWASA is the sole provider of potable water in the city, and as such, they are having a hard time keeping up with the demand for potable water. In addition, a significant number of private residences lack access to potable water and sanitary sanitation services on their properties. In order to complete this study, primary data were gathered through the use of questionnaire surveys, and informal interviews with experts; and secondary data were analyzed. The result is analyzed in three sections in which the first section shows the analysis regarding the privileged class, another one shows the underprivileged class analysis and the third one shows the combination of both. By breaking down the results, it is observed that the situation is way better than before in terms of consuming water from the improved sources, though the sanitation amenities need to be improved a lot though the progress is impressive. The study reveals that there is discrimination based on gender, economic capacity, and social standing for access to potable water and sanitary sanitation amenities. In addition, private-public partnerships can significantly enhance the current state of affairs. The report also recommends a number of activities to be taken conducive to outreach of the milestones attained in Dhaka.
Zenodo (CERN European Organization for Nuclear Research), Feb 15, 2022
In Bangladesh, there are a consequential proportion of the population is without access to salubr... more In Bangladesh, there are a consequential proportion of the population is without access to salubrious water sources and to lead a healthy and productive life humans need a salubrious source of water is a requisite. To consummate the deficit of salubrious water rooftop rainwater harvesting (RRWH) can be the alternative to underground water. RRWH can be legitimated as an appropriate alternative for groundwater because of the lofty yearly precipitation rate in Bangladesh. In addition, there is a massive gap between requisite and repository for fresh water and the situation seems vulnerable that can be deteriorated in the future. The current situation is distressful and this challenge needs to sort out properly otherwise it can prove a threat to mankind. Perhaps, as the present and future of the treatment of surface water is not blazing and the dependency on groundwater has to lessen so RRWH can be proved as the potent alternative. This study investigates the reliability, applicability of RRWH systems using daily water balance for an educational institute. The reliability co-relations with the different tank volumes indicate that both the time base and volumetric reliability rise with the increase of tank volume. Reliability does not rise with the upsurging consumed water value. But both time-based reliability and volumetric reliability lessen with the upsurging water demand. It can also be observed time-based reliability is greater than volumetric reliability and the overflow ratio decreases with the increases of tank volume. Besides, average water-saving increases with the increase of tank volume. RRWH has the potential to solve the water deficit problem in an educational institute for toilet flushing and floor cleaning purposes by meeting 22354 lit/day water demand.
Zenodo (CERN European Organization for Nuclear Research), Jul 10, 2023
The terms "climate change" and "climate change impacts" " have become ubiquitous in the 21st cent... more The terms "climate change" and "climate change impacts" " have become ubiquitous in the 21st century. Even though they are not the primary contributors to the problem, low-lying and developing nations like Bangladesh are bearing the brunt of the consequences of climate change. Nevertheless, the purpose of this research is to evaluate the two distinctly distinct regions with regard to the effects that climate change has had on a variety of meteorological parameters (temperature, rainfall rate, relative humidity, wind speed, and direction). The research was carried out using previously obtained data over a long period of time from the Bangladesh Meteorological Department (BMD) as well as reports that were previously published. Using the collected data, a regression analysis is performed, and it is shown that both Dhaka and Khulna stations are experiencing temperature increases that are greater than 1.5 degrees Celsius. However, in accordance with the international agreement known as the "Paris Agreement" the target is to restrict the rise in global temperature to no more than 1.5 degrees Celsius. In contrast to the temperature, the rate of rainfall is increasing in the Khulna station, whereas it is decreasing in the Dhaka station. On the other hand, relative humidity and wind speed are both going in the downward trendline at both stations. On the contrary,, it has been determined that Khulna station is more susceptible to the effects of climate change than Dhaka station.
Journal of Environmental Issues and Climate Change
This study evaluates the current state of Dhaka's potable water and sanitation amenities. Mor... more This study evaluates the current state of Dhaka's potable water and sanitation amenities. Moreover, the study addresses 6.1 and 6.2 of Sustainable Development Goal 6, which calls for optimal sanitation services and present conditions regarding water quality in Dhaka. In addition, the DWASA is the sole provider of potable water in the city, and as such, they are having a hard time keeping up with the demand for potable water. In addition, a significant number of private residences lack access to potable water and sanitary sanitation services on their properties. In order to complete this study, primary data were gathered through the use of questionnaire surveys, and informal interviews with experts; and secondary data were analyzed. The result is analyzed in three sections in which the first section shows the analysis regarding the privileged class, another one shows the underprivileged class analysis and the third one shows the combination of both. By breaking down the results, ...
Zenodo (CERN European Organization for Nuclear Research), Feb 10, 2023
The motive of this investigation is to assess whether the objectives of Sustainable Development G... more The motive of this investigation is to assess whether the objectives of Sustainable Development Goal 6 have been met by orienting them with current actions taken by a variety of ministries and divisions in Bangladesh. In addition to this, it investigates the institutional difficulties connected with the execution of Sustainable Development Goal 6. Several methods were utilized in this investigation for the purpose of examining both primary and secondary data. The actions that were taken by the numerous ministries and divisions of Bangladesh resonated, to a certain extent, with 8 of SDG 6's targets and 11 of its indicators. Because of unclear responsibilities assigned to various ministries and divisions, there is now overlapping jurisdiction, which has led to competing interests and a general lack of cohesiveness. When it comes to reaching the goals that have been established for Sustainable Development Goal 6, the most significant institutional bottlenecks include imprecise stakeholder investigation, a scarcity of data availability, a scarcity of competency and obedience, and a peak-to-bottom strategy outlook. The primary objective of the study is to identify the significant obstacles that must be overcome in order to successfully complete the indicators. In addition, some suggestions are offered in order to enhance the procedures and ensure that the milestone is reached within the allotted amount of time.
Malaysian Journal of Civil Engineering
In this present study, a numerical analysis has been performed to compare the shear resisting cap... more In this present study, a numerical analysis has been performed to compare the shear resisting capacities between beams with conventional loop stirrup and inclined stirrup. Resisting the shear force is one of the key features of stirrups. A rarely used and uncommon inclined stirrup setup is analyzed in this study and new findings are compared with the results of loop stirrup. Two sets of beams (150x300x1960mm) are analyzed to determine the ultimate shear force resisting capacities, displacement, and stress resistance capacities. It was observed that the beam with an inclined stirrup showed ultimate shear resistance up to 187.24 KN compared to the beam with a loop stirrup setup which was 114.24 KN. Displacement of the inclined stirrup setup and the loop stirrup setup was 2.38 mm and 4.21 mm. Stress resistance and distribution pattern was also improved upon using inclined stirrup. Flexural and Shear Crack patterns of the beams at the ultimate load are also predicted from numerical ana...
This study is associates the pedestrian behavior and preferences during using the foot overbridge... more This study is associates the pedestrian behavior and preferences during using the foot overbridge in three different sites of Dhaka city. All the surveyed sites are the same in characteristics. The data was attained on weekdays (peak hours) using the conventional road survey method. The pie chart is used to represent pedestrian's verdict on diverse factors. One way ANOVA test is done with the surveyed data to analyze the significance of pedestrians' gender, age, and profession over 8 different factors. After analyzing the data it's known that the highest percentage of female pedestrians use the foot over-bridge at site 3. Students, service holders, and businessmen use the foot over-bridge most. In addition, it's seen that age group in between 18-25 prefer to use foot over-bridge while crossing the road and all the foot over-bridges at site 1, site 2, and site 3 are safe, comfortable, time saver to the maximum pedestrians. Furthermore, pedestrians ponder foot over-bri...
Affiliated with the increase of construction and demolition of the structural projects in the who... more Affiliated with the increase of construction and demolition of the structural projects in the whole world along with Bangladesh, the country is producing a whale of Construction and Demolition (C and D) waste every year. But the colossal anxiety is that these huge amounts of C and D wastes are not managed well. Besides, sand mining is at its peak in Bangladesh because of the demand in the market. The effect of sand mining is the reason for many adverse effects on the ecology of the river including degrading the water quality of the river, changing the physical quality of the river, decreasing the river flow, riverbank erosion, and riverbank slump. That's why Recycled Fine Aggregate (RFA) can be the future in the construction industry. But this study mainly focuses on using RFA as a substitute for the filling sand as well as an alternate of Improved Subgrade (ISG). For this purpose, demolished concrete blocks were collected and turned into RFA to evaluate their engineering proper...
Zenodo (CERN European Organization for Nuclear Research), Feb 15, 2022
In Bangladesh, there are a consequential proportion of the population is without access to salubr... more In Bangladesh, there are a consequential proportion of the population is without access to salubrious water sources and to lead a healthy and productive life humans need a salubrious source of water is a requisite. To consummate the deficit of salubrious water rooftop rainwater harvesting (RRWH) can be the alternative to underground water. RRWH can be legitimated as an appropriate alternative for groundwater because of the lofty yearly precipitation rate in Bangladesh. In addition, there is a massive gap between requisite and repository for fresh water and the situation seems vulnerable that can be deteriorated in the future. The current situation is distressful and this challenge needs to sort out properly otherwise it can prove a threat to mankind. Perhaps, as the present and future of the treatment of surface water is not blazing and the dependency on groundwater has to lessen so RRWH can be proved as the potent alternative. This study investigates the reliability, applicability of RRWH systems using daily water balance for an educational institute. The reliability co-relations with the different tank volumes indicate that both the time base and volumetric reliability rise with the increase of tank volume. Reliability does not rise with the upsurging consumed water value. But both time-based reliability and volumetric reliability lessen with the upsurging water demand. It can also be observed time-based reliability is greater than volumetric reliability and the overflow ratio decreases with the increases of tank volume. Besides, average water-saving increases with the increase of tank volume. RRWH has the potential to solve the water deficit problem in an educational institute for toilet flushing and floor cleaning purposes by meeting 22354 lit/day water demand.
Asian journal of civil engineering, Feb 22, 2024