DSpace Collection:
http://142.54.178.187:9060/xmlui/handle/123456789/572
2024-03-28T13:03:14ZPERFORMANCE IMPROVEMENT OF DIAPHRAGM WALL AT HIGH RISE BUILDING BY VALUE ENGINEERING UTILIZATION
http://142.54.178.187:9060/xmlui/handle/123456789/930
Title: PERFORMANCE IMPROVEMENT OF DIAPHRAGM WALL AT HIGH RISE BUILDING BY VALUE ENGINEERING UTILIZATION
Authors: Husin, Albert Eddy
Abstract: Diaphragm Wall (D-Wall) is a retaining wall which is also used for basement floor walls which are part of a lower
structure which contributes 8% of the total cost of high-rise building construction is a job that has a high enough level of
difficulty so that it has the potential to experience cost overrun. According to World Bank data that 63% of 1,778 projects
experienced Over-run Cost Value Engineering (VE) used to produce more efficient and effective costs and time so as to
increase profit and revenue for contractors and owners. Statistical analysis uses the Relative Importance Index (RII)
method to get the ranking of the 10 most influential factors on cost savings including: Location, Picture completeness and
specification, Cost efficiency, Improving function value, Better project value, Mature planning, Hole ground collapse drill,
Low productivity tools, Cost Model and price fluctuations. From the results of the study Analysis of the case study
obtained cost optimization of 18.83%.2019-09-20T00:00:00ZA NOVEL ALGORITHM BASED ON CELLULAR AUTOMATA TO ELIMINATE NOISE IN DIGITAL IMAGES
http://142.54.178.187:9060/xmlui/handle/123456789/929
Title: A NOVEL ALGORITHM BASED ON CELLULAR AUTOMATA TO ELIMINATE NOISE IN DIGITAL IMAGES
Authors: Angulo-Sogamoso, Karen V.; Gil-Sierra, Danilo G.; Espitia-Cuchango, Helbert E.
Abstract: A cellular automaton is a processing system that makes decisions based on the information of its neighbors.
Implementing a cellular automaton can have a direct relationship with the form of digital images representation, whereby it
is possible to perform image processing applications using this concept. Due to this, this document presents the proposal of
an algorithm based on cellular automata for the elimination of impulsive noise in digital images, which makes use of the
adaptation mechanism to adjust to the environment conditions (in this case, the image) at the moment that the information
acquired by the cellular automaton is insufficient to make a decision about the pixel under evaluation. In addition, thanks to
the consideration of related works, an evaluation method can be established to observe the performance of the proposed
algorithm against two algorithms presented by other authors. Tests are carried out with four images that have different
characteristics. In evaluating the images exposed to different noise levels, the results obtained show that the proposed
algorithm presents better according to the Structural Similarity Index (SSIM), since at noise levels between 10% and 90%
improvements in noise reduction range between 15% and 68%.2019-09-20T00:00:00ZIMPROVING THE EFFICIENCY OF MANUFACTURING FINE-GRAINED CONCRETE THROUGH THE USE OF MAN-MADE SANDS AND COMPOSITE BINDERS
http://142.54.178.187:9060/xmlui/handle/123456789/927
Title: IMPROVING THE EFFICIENCY OF MANUFACTURING FINE-GRAINED CONCRETE THROUGH THE USE OF MAN-MADE SANDS AND COMPOSITE BINDERS
Authors: Shadykanov, Kalys
Abstract: In this paper, an attempt has been made to substantiate the need for utilization of man-made sands and sands of
mechanical origin obtained from local rocks as a result of mining, processing into crushed stone and sawn materials. The
use of waste products contributes to the expansion of the raw materials base of the construction industry, increase in the
number of composite binders when used as a filler, large-scale propagation of fine-grained concrete for various products
along with minimization of material and energy costs, expanding the practice of using stone-crushing, stone-sawing
products and managing new technologies for environmental conservation. The decision to utilize man-made waste
materials (sands) of mechanical origin is particularly important for large-scale expansion of the production of fine-grained
concrete for a region where no metal (reinforcement steel) is manufactured.2019-09-20T00:00:00ZEXPERIMENTAL STUDY OF DEFORMATION AND PORE WATER PRESSURE FOR EMBANKMENT ON SOFT SOIL USING RAPID IMPACT COMPACTION
http://142.54.178.187:9060/xmlui/handle/123456789/926
Title: EXPERIMENTAL STUDY OF DEFORMATION AND PORE WATER PRESSURE FOR EMBANKMENT ON SOFT SOIL USING RAPID IMPACT COMPACTION
Authors: B., Arifin; Samang, Lawalenna; Harianto, Tri; Muhiddin, Achmad Bakri
Abstract: This study was conducted to analyze the deformation behavior and increases of pore water pressure on an
embankment construction on the clay soil layer which is compacted using the Rapid Impact Compaction (RIC) Method. In
this study, an equipment model was used that can simulate the RIC method which was electro-mechanically controlled at
frequency of 30-40 blows per minute. The compaction test mold has a diameter of 80 cm and height of 120 cm, tested clay
layer has a thickness of 80 cm and the sand-and-gravel embankment has a thickness of 30 cm. The clay layer was attached
with pore pressure cell and earth pressure cell. An ultra-sonic sensor and a dial gauge were put on the surface. The
compaction process with RIC was carried out up to 300 blows using a 45kg impact mass, falling height of 15 cm, impact
base diameter(B) of 30 cm. The results showed the achievement of 90% of maximum vertical deformation on the impact
foot occurred at 175 blows and heaving surfaces occurred at a distance of 0.80B from the center of the impact base, while
at the 300 blows, the heaving surfaces distance was 0.90B. The analysis showed the generation of excess pore water
pressure following the phenomenon of undrained conditions in the cyclic dynamic loading, where there was a very fast
increases of pore water pressure at the 55 first of blows of the initial stage of compaction and then the increase rate reduced
until reaching the constant line after the 175 blows.2019-09-20T00:00:00Z