Penyelidikan yang dibuat Kejuruteraan Kos Pembinaan daripada Universiti
Liverpool telah menunjukkan bahawa jenis asas bangunan mempunyai index kepentingan
sebanyak 71% yang mana ini menandakan asas bangunan mempunyai kesan yang ketara
terhadap kos pembinaan keseluruhan projek. Secara konvension, asas pad digunakan
dalam pembinaan rumah teres tempatan. Namun, asas rakit menjadi semakin popular di
kalangan kontraktor dalam pembinaan rumah teres sehingga kebanyakan jurutera
bertauliah juga bersetuju degan kenyataan bahawa asas rakit akan menjimatkan kos
pembinaan berbanding asas pad. Walau bagaimanapun, tiada sebarang penyelidikan
dibuat untuk menjustifikasikan kedua-dua alternatif dalam pembinaan asas bangunan.
Lantaran, projek tahun akhir ini harap dapat memberikan penjelasan yang sepenuhnya
kepada persoalan di atas dngan contoh rekabentuk dan pengiraan yang konkrit. Konkrit
bata ataupun dalam konteks ini konkrit bata berlubang adalah suat alternatif dalam
pembinaan dinding bangunan. Ia dijangka akan menggantikan penggunaan bata lempung
dalam rekabentuk dinding. Secara amnya, konkrit bata berlubang tampaknya akan
menurunkan kos pembinaan dengan pengurangan dalam penggunaan bar keluli dan
konkrit serta ketidakperluan langsung dalam penggunaan rangka struktur dan plaster.
Konkrit bata dijangka akan menurunkan kos pembinaan sebanyak 30% berbanding bata
lempung. Namun, angka ini adalah daripada kontraktor pengilang konkrit bata tersebut
dan tiada sebarang penyelidikan dibuat oleh jurutera mahupun pengusaha pembinaan
tempatan.
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A research done by the Construction Cost Engineering Research Group of
University of Liverpool had shown that the type of foundation has achieved an important
index of 71% which indicates a high effect on cost and duration of construction projects.
Conventionally, local construction of terrace houses will use pad footing as the
foundation. However, raft foundation gradually has gained popularity among the local
contractors nowadays in their construction of terrace houses. Even the qualified engineers
seem to agree on the statement that the raft foundation is able to bring cost effectiveness
compare to pad foundation. Nonetheless, there is no such a survey carried out locally to
show the results of both the alternatives in the construction of foundation. Thus, the case
studies from this final year project are hopefully able to bring an answer to the question
above with a standard design and reliable figure.
Concrete masonry unit or in this case, concrete hollow block is an alternative in
the construction of walls. It is believed that the material is sooner going to replace the
conventional clay brick in wall design. Basically, the concrete hollow block seems to be
able to reduce the usage of steel bars and concrete while the formwork and plaster are
eliminated in the construction. Concrete hollow block is expected to reduce the cost of a
housing project by 30% if compare to brick wall. However, this figure is provided by the
contractor from the manufacturer of concrete masonry itself. There is no survey done by
either local suppliers or engineers as well as to prove the positive outcome in the context
of cost effectiveness by using concrete masonry unit in wall design.
Cost effectiveness in the construction of terrace houses by using raft foundation & concrete masonry unit / Chua Chun How