Assalamualaikum w.b.t.
Dalam post kali ni, saya hendak menekankan beberapa perkara yang penting dalam construction site..
Pengangkutan adalah salah satu perkara yang terpenting dalam sesebuah negara dimana, jika sistem pengangkutan kita lemah maka ekonomi negara tersebut juga tidak akan dapat berkembang dengan baik. Rakyat juga akan turut terkena kesan akibat daripada kelemahan sistem pengangkutan tersebut.
Dalam sektor pembinaan, access adalah perkara yang amat penting bagi memastikan segala pergerakkan dalam site adalah lancar dan teratur tanpa menggangu pembinaan yang sedang dijalankan. Oleh itu, perkara pertama sebelum memulakan sesuatu pembinaan adalah dengan merancang main access for the construction site.
Access yang baik adalah dengan merancang supaya ia mempunyai dua haluan dan juga boleh bergerak ke seluruh kawasan pembinaan tanpa gangguan. Ini adalah kerana, ia dapat memudahkan penghantaran bahan (material) seperti besi rebar atau concrete ke tempat yang diperlukan. Jika tidak dirancang dengan baik, kos memindahkan barang (seperti minyak dan pekerja) akan bertambah. Bukan masalah kos sahaja, malah masa yang amat berharga juga akan dibazirkan begitu sahaja kerana kita akan membuat kerja 2 kali (pertama: pindah ditempat masuk dan; kedua: pindah ke tempat yang memerlukan bahan tersebut).
Jika ditapak tersebut mempunyai perancangan access yang baik tetapi tidak bermakna jika kita tidak maintain laluan tersebut. Pernah terjadi di tapak pembinaan saya dimana setiap kali concrete truck hendak keluar dari tapak, hendaklah di bantu oleh sebuah excavator kerana access tersebut berkeadaan teruk. Tiada satu lori pon yang dapat melalui lalun tersebut dengan jayanya tanpa bantuan excavator tersebut.
Walaupun saya kurang pengalaman untuk maintain laluan utama ini namun pada pendapat dan pemerhatian di tapak, saya rasa cara terbaik untuk memastikan laluan tersebut sentiasa baik adalah dengan memastikan laluan tersebut bebas dari air yang bertakung. Ini adalah faktor utama mengapa laluan tersebut (di tapak pembinaan saya) sentiasa rosak. Jika masalah takungan air dapat diselesaikan, maka memang tiada masalah bagi lori-lori tersebut untuk melalui laluan tersebut (tanpa bantuan excavator) walaupun pada hari selepas hujan.
Laluan ini juga perlu dimampatkan selalu supaya tanah yang lembik dapat dipadatkan dan mengurangkan kesan tayar tenggelam dan laluan licin daripada berlaku.
Setakat ini sahaja untuk post kali ni... saye nak gi makan..
Selamat tahun baru! Kepada para engineer islam jangan makan rasuah atau melibatkan diri dengan RASUAH! ALLAH maha Melihat...
Wassalam...
Thursday, January 1, 2009
Friday, December 26, 2008
How To: Construct a Wash Through
Hello engineers!
Recently, i have been assigned by my APM (Assistance Project Manager) to construct a new wash through (where every lorry wash their muddy tyres) replacing the old one. This is not the same type as the old one whereby the new wash trough no need any workers to clean the tyres but the driver have to go back and forth several times to clean the tyres. The dimension is as follows:
Length: 9 meters
Concrete Thickness: 300mm (including crusher run/lean concrete)
Concrete grade: C20
Rebar: BRC A7
Shape: curve shape.
Water level: 300mm
So, i start off with cutting the soil with a curve shape then poured one load of crusher run onto it.. Compact a little, then erect the formwork and arrange BRC A7 for the slab.. later in the evening, poured 15m³ of concrete grade 30. After a while, until the concrete already dry up a bit then do the grooveline using 3inch x 6inch wood. COMPLETE! YEY!!
But, the next day i found something is not right... The slope on the front side is much much much higher than the back one... If we were to collect water in it, there won't be any! DAMN! What went wrong!?
So, we (Me and the APM) decided to add some more height at the lower partand construct the wall higher than it should be... Next 2 days, we poured in water and the result is quite ok, the water collect at the lower side more and quite deep (more than 300mm height)
So, what is the problem actually?
For all of you engineers out there, you must remember 1 think before construct anything at site:
"LEVELING IS THE MOST IMPORTANT THING IN CONSTRUCTION"
My mistake in this simple project is because i'm not taking or doing any leveling before constructing the wash trough.. Therefore, here are some tips to construct a wash trough:
1. Get the OGL (Original Ground Level) at the location.
2. Set your own level for the structure based on the OGL.
3. Calculate other level for the structure (i.e the wash trough front part, back part, center part, etc)
4. Mark the desired and calculated level at site.
5. Start construct / excavate to desired level.
6. Double check the level, sufficient or not.
7. Pour crusher run / lean concrete (compact if using crusher run / leave one day for lean concrete)
8. Erect formwork, put rebar, and mark the slab thickness.
9. Pour concrete
Walla! your wash trough is complete! Good luck guys!
(easier to say than done actually!)
Recently, i have been assigned by my APM (Assistance Project Manager) to construct a new wash through (where every lorry wash their muddy tyres) replacing the old one. This is not the same type as the old one whereby the new wash trough no need any workers to clean the tyres but the driver have to go back and forth several times to clean the tyres. The dimension is as follows:
Length: 9 meters
Concrete Thickness: 300mm (including crusher run/lean concrete)
Concrete grade: C20
Rebar: BRC A7
Shape: curve shape.
Water level: 300mm
So, i start off with cutting the soil with a curve shape then poured one load of crusher run onto it.. Compact a little, then erect the formwork and arrange BRC A7 for the slab.. later in the evening, poured 15m³ of concrete grade 30. After a while, until the concrete already dry up a bit then do the grooveline using 3inch x 6inch wood. COMPLETE! YEY!!
But, the next day i found something is not right... The slope on the front side is much much much higher than the back one... If we were to collect water in it, there won't be any! DAMN! What went wrong!?
So, we (Me and the APM) decided to add some more height at the lower partand construct the wall higher than it should be... Next 2 days, we poured in water and the result is quite ok, the water collect at the lower side more and quite deep (more than 300mm height)
So, what is the problem actually?
For all of you engineers out there, you must remember 1 think before construct anything at site:
"LEVELING IS THE MOST IMPORTANT THING IN CONSTRUCTION"
My mistake in this simple project is because i'm not taking or doing any leveling before constructing the wash trough.. Therefore, here are some tips to construct a wash trough:
1. Get the OGL (Original Ground Level) at the location.
2. Set your own level for the structure based on the OGL.
3. Calculate other level for the structure (i.e the wash trough front part, back part, center part, etc)
4. Mark the desired and calculated level at site.
5. Start construct / excavate to desired level.
6. Double check the level, sufficient or not.
7. Pour crusher run / lean concrete (compact if using crusher run / leave one day for lean concrete)
8. Erect formwork, put rebar, and mark the slab thickness.
9. Pour concrete
Walla! your wash trough is complete! Good luck guys!
(easier to say than done actually!)
Sunday, June 29, 2008
Introduction
Welcome to the real world guys...
In this blog, I will post some information / knowledge specifically for civil engineering undergrads so that you'll gain new information / experience on what's really happening on the real world of construction industry..
For your information, I'm working at Domain Resources Sdn. Bhd. subsidiary of Malton Berhad. This company is a Construction and Project Management company. Currently, my project is V-Square (VSQ) located at Petaling Jaya, Selangor doing a high-rise building consist of 7 blocks of building with 4 underground basement, and up to 21 floors above..
I'm the Site Engineer at the site.. For this project, I'm involved from the beginning of the construction (excluding tender process).. This project started on 20th of May (my first day in the company) and currently still doing earthwork for basement..
Any knowledge that you won't learn in the classroom will be posted here so that you'll know how the real construction industry really is...
Please post any comment if you have any suggestion or criticism on anything.. We can discuss it together...
Enjoy... :)
In this blog, I will post some information / knowledge specifically for civil engineering undergrads so that you'll gain new information / experience on what's really happening on the real world of construction industry..
For your information, I'm working at Domain Resources Sdn. Bhd. subsidiary of Malton Berhad. This company is a Construction and Project Management company. Currently, my project is V-Square (VSQ) located at Petaling Jaya, Selangor doing a high-rise building consist of 7 blocks of building with 4 underground basement, and up to 21 floors above..
I'm the Site Engineer at the site.. For this project, I'm involved from the beginning of the construction (excluding tender process).. This project started on 20th of May (my first day in the company) and currently still doing earthwork for basement..
Any knowledge that you won't learn in the classroom will be posted here so that you'll know how the real construction industry really is...
Please post any comment if you have any suggestion or criticism on anything.. We can discuss it together...
Enjoy... :)
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