Baze University

NASIRU RIMINTSIWA SANI


Lecturer Photo
  • Qualifications: MSc
  • Role Title: Lecturer I
  • Telephone: 08037067387
  • Email: nasir.sani@bazeuniversity.edu.ng
  • Department: Engineering
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Engr Nasiru Sani Rimintsiwa was born on the 4th of February 1986. He was from an extended family in the Kingdom of Zazzau popularly known as Zaria from Kaduna State. He attended Therbow School for his nursery and primary education. From there, he proceeded to Zaria Academy, Shika where he obtained his West African Examination Council result somewhere in 2004. He started Ahmadu Bello University (ABU) where he was admitted to study bachelor of engineering in Civil engineering. He however left ABU for University of East London where he bagged a first class degree in Civil Engineering in 2011. He then proceeded to the University of Nottingham, thereby obtaining his Mater of Science (MSc) Civil Engineering in February 2013.

He started his career as a lecturer with Nuhu Bamalli Polytechnic during his service year in 2013. He worked with the Public Procurement Authority (Due Process Office) as a Civil Engineer I. From there, he resigned to join Baze University as a lecturer II in the department of Civil Engineering in 2017. He has since then been an active academic staff in the department of Civil Engineering, he was in September 2018 given the leadership of the department.

He is a member of the Council for the Regulation of Engineering in Nigeria (COREN), a member of the national Society of Engineers (NSE), a member of the Nigerian Institute of Civil Engineers (NICE), and also a member of the International Association of Engineers and Scientists (IAE). He is currently working on a research titled "Characterization of lime and bagasse ash stabilization processes of clay soil using wave based technology" for his PhD.

He is happily married with two kids.


Title Name Year Acquired
Bachelor of Engineering Civil Engineering2011
Bachelor'sBachelor's2011
Master of Science Civil Engineering 2013
Module Code Module Description Credit Unit
CVE301 Elements of Architecture 3
CVE305 Civil Engineering Materials 3
CVE306 Soil Mechanics 3
CVE314 Design Studies II 2
CVE407 Soil Mechanics II 2
CHARACTERIZATION OF LIME AND BAGASSE ASH STABILISATION PROCESSES OF CLAY SOIL USING WAVE BASED TECHNOLOGY

Background
Construction on soft clay soil could be problematic due to the excess settlement induced. Thus it is necessary to stabilise and improve clay properties before the commencement of foundation construction. Lime has been vastly accepted as a suitable soil stabiliser used in geotechnical projects. The characteristics of lime stabilisers and its effect on the engineering properties of soils have been well documented. 
Bagasse is a fibrous residue that remains after the extraction of sugar juice from the cane in sugar factories, and it is used again as a good source of energy in boilers for the generation of vapor and high temperature.Bagasse ash is an industrial waste which is used in sugar cane industries as a source of energy in most part of the world. On the other hand, lime (Calcium hydroxide) is an inorganic compound obtained when calcium oxide (quicklime) is mixed or slaked with water. 

Aim 
The aim of this research is to evaluate the characteristics of bagasse ash stabilized clay using macro-scale and micro-scale approaches and compare it with lime stabilized clay. In macro-scale, elastic wave velocities and electromagnetic wave analyses will be correlated with the geotechnical properties. While in micro-scale, transformation of micro structure will be obtained through scanning electron microscope (SEM). The relation between the macro-scale properties and the micro-scale structural transformation will be built up to advance geotechnical engineers’ understanding. Parametric study will be carried out to tune optimum geotechnical properties with different material mixture ratio and produce design charts for geotechnical applications.

Methodology
The differences in lime stabilisation and bagasse ash stabilization processes will be determined using two important approaches: the macro-scale and micro-scale approach. Macro scale experiments will be performed in the field and will include the measurements of the velocity of shear and compression waves and the characterisation with electromagnetic wave (resistivity) on stabilised fills. The data collected will be analyzed in terms of time and frequency domain and the result obtained will be compared with the outputs of meso scale element tests comprising cyclic simple shear, ring shear and resonant column. The micro-scale approach includes capturing the transformation of micro structure of clay during stabilisation using scanning electron microscope (SEM). This exercise will inform an advanced characterisation on the stiffness of the stabilised soil and its comparison with the stiffness of the untreated material.
Materials            the main materials to be used include clay soil, lime and sugarcane bagasse ash