Vol 7 Issue 1 April 2019-September 2019

Abstract: The general practice of recycling brick waste is to crush and use them as aggregates in concrete or low grade road base or sent directly for landfill. The author of the present study is of the opinion, that, such practices of brick waste utilization are really not sustainable, as, this inert waste can be utilized, to produce durable and attractive (in terms of color and texture) building units. With this premise, this experimental study is pursued to assess the potential of brick masonry waste for making Cement Stabilized Masonry Blocks (CSMB). The Brick Powder (BP) is obtained by crushing the brick masonry waste obtained from dump yards and used in conjunction with Natural Fine Aggregate (NFA). Fifteen mix compositions are considered by varying BP, NFA as 60:40, 70:30 and 80:20 respectively, with the percentage of cement content as 5, 8, 10, 12 and 15. Wet and dry compressive strength of each of the mix variants is determined by performing tests on cube specimens of size 70. 6mm.The wet compressive strength is found to be 0.75 times the dry compressive strength. A minimum of 10% of cement content is required to achieve the strength in excess of 3.5 Mpa.

Keywords: Cement Stabilized Masonry Blocks (CSMB), Brick Powder (BP), Natural Fine Aggregate (NFA).

Title: Assessment of Potential of Brick Masonry Waste for the Production of Cement Stabilized Masonry Blocks - Experimental Study

Author: Vinay Kumar B M

International Journal of Civil and Structural Engineering Research  

ISSN 2348-7607 (Online)

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Abstract: This paper study on effect of open ground story on seismic performance of high rise building parking space for residential apartments in populated cities is a matter of major concern. Hence the trends has been to utilize the ground story of the building itself for parking. “Open Ground Story building are those type of building in which the ground story is free of any infill masonry walls. These types of building are very common in India for parking provisions. In generally open ground story column were either damaged severely or failed completely, there by damaging the building due to sudden reduction in lateral stiffness and mass in the ground story result in higher under seismic loading. To prevent the soft story failure a multiplication factor by static nonlinear analysis considering infill stiffness and strength.

Keywords: Soft Story, Infill Masonry.

Title: A COMPARATIVE STUDY ON EFFECT OF OPEN GROUND STOREY BUILDING ON SEISMIC PERFORMANCE OF HIGH RISE BUILDING BY USING DIFFERENT PROVISION OF INFILL

Author: J.N. Sakhiya, J.D. Gohel

International Journal of Civil and Structural Engineering Research  

ISSN 2348-7607 (Online)

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Abstract: Concrete is most widely used construction material in the world. Its service life is considered with its mechanical strength, durability and serviceability. As concrete is most important and widely used materials in construction. Hence, to meet its requirements we need to achieve high quality concrete. As the long-term performance of concrete structure can affect the life span of concrete, so it is necessary to know its properties and behaviour at large extend. Hence, to determine the mechanisms that affects the properties of concrete, enhance the understanding and implication of behaviour on the service life of concrete. We must have knowledge of strength -time relationship is of importance when a structure is subjected to certain type of loading. Hence testing is important so in this project we are going to determine the age factor of various grades of concrete used in PUNE METRO RAIL PROJECT. Hence, in this project we are going to test the concrete that is only applicable for PUNE METRO and after testing of concrete from the results it shows that the behaviour of concrete with increase of time which gives a factor which is the main objective of our project.

Keywords: Ground Granulated Blast Furnace Slag (GGBS), Compressive Strength, Mechanical Strength, Quality.

Title: DETERMINATION OF AGE FACTOR OF CONCRETE: CASE STUDY OF PUNE METRO RAIL PROJECT

Author: Prof. Pranjali Kulkarni,Mr.Amol Jagdale, Ms.Pranjali Alane, Ms. Ketaki Kesarkar, Mr.Sainath Langote, Ms. Vaishnavi Mane, Ms. Pushpa Wankhede

International Journal of Civil and Structural Engineering Research  

ISSN 2348-7607 (Online)

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Abstract: The development of a general computer program for analysis of free vibration of rectangular thin plates using polynomial functions is the focus of this study. A general polynomial shape function was first derived and then Ritz energy equation used to obtain an equation in terms of a non-dimensional parameter 'k', for the resonating frequency of a vibrating plate. Thereafter, Matlab programming language was used to develop an interactive computer program which requires the user to input the shape function and dimensions of each plate under consideration in order to obtain the resonating frequency. The validity of the program was demonstrated by comparing the predicted resonating frequencies with those obtained by other relevant researchers. The percentage differences were minimal and insignificant. Thus, the developed program can be used for easy and quick free vibration analysis of rectangular plates.

Keywords: Determination, Matlab Programming, Polynomial Shape Function, Resonating Frequency, Rectangular Plate, Ritz Energy Equation, Free Vibration.

Title: Determination of Resonating Frequency of Thin Rectangular Flat Plates

Author: Edward I. Adah, Owus. M. Ibearugbulem, David. O. Onwuka, Solomon U^. Okoroafor

International Journal of Civil and Structural Engineering Research  

ISSN 2348-7607 (Online)

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Abstract: This study investigates properties of Nigerian-based RHA as a partial replacement for cement in HSC for sustainable and economic construction. Rice husks were obtained from Ire Ekiti, calcined to ash in a furnace under the range of 600 - 800℃, sieved and milled to improve the surface area and composition test was done. Two samples of RHA (milled and unmilled) were prepared and RHA-Cement blends using 0%,10%,20%,30%,40% and 50% by weight of cement. 72 cubes were prepared with an expected compressive strength of 60 MPa with each percentage replacement respectively having 12 cubes each for 7, 14, 21 and 28-days compressive strength to obtain the optimum percentage replacement. In the RHA produced, combined proportion of (SiO_2), (〖Al〗_2 O_3), and (〖Fe〗_2 O_3) gives 91.48% with loss of Ignition (LOI) of 3.79%, thus, satisfying ASTM 70% minimum requirement for the combined proportion of these oxides and 6% maximum Loss of Ignition. From the compressive strength test, the unmilled RHA -Cement blends performed poorly with respect to the control mix while the milled RHA -Cement shows an increase in strength and peaked at 10% with an average 28 days compressive strength of 63.70 MPa while 20% RHA gives 59.85 MPa. The close result of the average compressive strength of the 20% RHA to the target strength of 60 MPa, 10% and 20% RHA mixes were chosen as the likely optimum RHA replacement. With respect to these findings, Nigerian-based RHA shows promises for use in construction activities.

Keywords: rice husk ash, sustainable, Nigerian, High strength concrete, construction.

Title: EXPLORING THE SUITABILITY OF NIGERIAN-BASED RICE HUSK ASH FOR HIGH STRENGTH CONCRETE PRODUCTION FOR USE IN CONSTRUCTION

Author: Anthony O. Bucknor, Fisayo M. Animashaun, Festus A. Olutoge, Oluwaseun A. Adetayo

International Journal of Civil and Structural Engineering Research  

ISSN 2348-7607 (Online)

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Abstract: The chemical composition of cement has crucial impact on the performance of resulted concrete or mortar. Different brands of Portland cement are used in Libya by local contractors for various construction works without prior knowledge of their performances. In this study four different brands of Portland cement from Libyan market were analysed with X-Ray Fluorescence (XRF) spectrometer for their chemical constituents and compared with ASTM standard specifications. The results showed that there were no significant differences between chemical composition values specified in ASTM C150 standard and that of commercial Portland cements examined in this study. All the studied cements were found to be good for any construction works be it concrete or mortar formation especially where no particular properties are required.

Keywords: Cement brand, chemical composition, mineral composition, Libyan market.

Title: Analysis of Chemical Composition of Different Brands of Portland cement Used in Libya

Author: Magdi Almabrok, Naser Bin Khashin

International Journal of Civil and Structural Engineering Research  

ISSN 2348-7607 (Online)

Research Publish Journals