[Environment] Chief Editor Iftikhar A. Raja comsats institute of Information Technology Abbottabad (Pakistan)

ABSTRACT

This paper is aimed to write about how to develop criteria and standards to follow in architecture while designing the public libraries and give the perspective for the architects and civil engineers to start with developing a concept and this paper links between the provisions and the urban facility to contribute to the sustainable development of the city.

EBE-07

COMPARISON OF NORMALLY VIBRATED CONCRETE AND SELF COMPACTING CONCRETE IN STRUCTURAL COMPONENTS OF A MEDIUM RI SE BUILDING
Ammara Sarfraz and Mehreen Khalid *

Department of Architectural Engineering and Design,

University of Engineering and Technology, Lahore

[e-mail], [e-mail]

ABSTRACT

Increasing trend of urbanization and industrialization has demanded construction of buildings with a modernization to make an optimized use of reduced available land. In heavily populated areas especially in under-developing countries, which can be achieve economically by using self-compacting concrete(SCC) instead of normal vibrated concrete(NVC). In this research work, experimental results for SCC are extracted from a locally carried research. The results are implemented on an existing medium rise building, which is then designed for both SCC and NVC by software stimulation. The comparison of detailed effects of SCC and NVC on the structural components of the building in terms of reinforcement and dimension is established, on the basis of the two models. The results were, under the same load conditions, when the cross-sectional area of SCC columns is reduced from 25 % to 56.5% , the reinforcement is reduced from 25% to 54.5% as compared to NVC columns. Similarly when the cross-sectional are of SCC beams is reduced to 57.2% as compared to NVC beams , the reinforcement reduction varies from 37.042% to 95.25%. Moreover recommendation for future work and direction for this field of research have been detailed.

EBE-12

ceramic waste as aggregates in concrete for sustainable DEVELOPMENT
Humera Ahmed, Khuram Rashid* and Waleed Shakeel **

Department of Architectural Engineering and Design, University of Engineering and Technology, Lahore

[e-mail], [e-mail], [e-mail]

ABSTRACT

Concrete is considered as the largest man made construction material in this world. Increase in its demand results in rapid consumption of natural resources. Therefore, there is a rapid search for alternate suitable materials which are equivalent in properties to concrete. This work describes the experimental investigation; in which concrete was casted by incorporating various amount of ceramic waste. Fine aggregate as well as coarse aggregate in concrete was partially replaced by granulated ceramic waste. Concrete with conventional materials was also prepared and referred as Reference Concrete in this work. Natural fine aggregate was replaced by ceramic waste by an amount of 10, 15 and 20% and natural coarse aggregate by coarse form of ceramic waste by an amount of 10, 20 and 30%. All other parameters of mixtures were kept constant. The compressive strengths of each mix were calculated at ages of 7, 28 and 63 days. It is evident from the results that the workability decreased and compressive strength was increased with the increase in ceramic content. This research recommends that ceramic waste can be partially replaced in concrete but further experimentation is still required to check the tensile strength and durability of such concrete.
EBE-16

Radon Monitoring In The Built-Up Area Using Solid State Nuclear Track Detectors
S.U. Rahman¹, M. Rafique², F. Khan³, Z. Wazir⁴ and Iftikhar A Raja<sup>5

1</sup>Department of Medical Physics, Nuclear Medicine, Oncology and Radiotherapy

Institute (NORI), Islamabad

²Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad

³Department of Geology, university of Haripur, KPK

⁴Department of Basic Sciences, Riphah International University, Islamabad

⁵Deparmtne of Environmental Sciences,

COMSATS Institute of Information Technology, Abbottabad

[e-mail]
ABSTRACT

Indoor radon measurements have been carried out in the dwellings of district Chakwal using solid state nuclear track detectors (CR-39). The objective of the study was to estimate the radiation doses received by the dwellers of the area due to indoor radon exposure. CR-39 detectors were installed for three months at head height in bedrooms and drawing rooms of 30 randomly selected houses. After 90 days, the installed detectors were collected and etched for 10h in 6M concentration of sodium hydroxide solution at 80 ⁰C. The tracks were counted under an optical microscope and track densities were related to radon concentrations by using a calibration factor. The measured indo radon concentration varied from 11 to 182 Bq m^-3 with an average concentration comes out to be 56 ± 11 Bq m^-3. Radon doses were calculated using the UNSCEAR model and annual effective doses were found to be 0.84 ± 0.16 mSv and 0.93 ± 0.17 mSv for bed rooms and living rooms, respectively. Overall yearly mean effective dose was estimated to be 0.88 ± 0.17mSv for the inhabitants living in the studied area and found to be less than the recommended action limits 3-10 mSv.

EBE-17

Utiliaztion of waste glass powder as a partial replacement of cement in concrete

Fasih Ahmed Khan, Muhammad Fahad* and Khan Shahzada**

Department of Civil Engineering, University of Engineering &Technology, Peshawar.

[e-mail], [e-mail], [e-mail]