SCHOOL OF ARCHITECTURE, BUILDING & DESIGN

Bachelor of Quantity Surveying (Honours)MEASUREMENT 1 [QSB 60104]

CONSTRUCTION TECHNOLOGY I [BLD 60104]

BUILDING MATERIALS [BLD 62003]

Title : Site Visit To DLatour Construction Site Report

Name : Muhammad Hasif bin Alias

Student ID : 0316413

Content

1.IntroductionPg. 1

2.ObjectivesPg. 2

3.ContentPg. 3

-Site

-Formwork

-Scaffolding

-Concrete

4.Conclusion

Introduction

On 21st of November 2014, a construction site visit is organized by Sr. Ang Fuey Lin in DLatour Construction Site, Bandar Sunway, PJS 7, Selangor which is very near to Taylors University Lakeside Campus. The project description is as stated below :

Project2 Blocks of 27-Storey SoHo and a 28 Storey Serviced Apartment

DeveloperDK - My Properties Sdn. Bhd.

ArchitectRDA - Harris Architects Sdn. Bhd.

Quantity Sr.Alpha-Omega Matrix

ContractorPasukhas Construction Sdn. Bhd.

The site visit is joined by 45 students and 5 lecturers. We are divided by 2 groups. The site visit begin with the first group at 9.00am sharp guided by construction site safety officer, Encik Kamarul and his teams. We are allowed to visit the basement ground floor and first floor as the site is still under heavy construction. The first session ended at 10.00am and continued with the second group.

Objectives

To exposed one self to the actual working environment on site.

To identify and observe the usage materials and machineries at the construction site.

To understand the importance of personal safety in construction site.

To understand and observe the construction process techniques and applications.

To strengthen communication skills and to see the importance of teamwork in the building team.

To analyze the formworks, scaffoldings and concretes used in site.

To identify the items measurable for sub-structure and reinforced concrete frame works.

ContentOutside the Building

Inside the Building

Concrete ( Building Materials BLD62003 )Concrete used on site - GRADE 40

Advantages:

- High compressive strength.

- High load bearings capacity.

- Widely use for high-rise building.

Disadvantages:

- Slightly expensive.

Alternative concrete - GRADE 30

Advantages:

- Cheaper than Concrete Grade 40

Disadvantages:

- Lower compressive strength and load bearings capacity, however, it is sufficient because it met the requirement of a strong concrete mixture proportion of 1:2:3 (cement:sand:gravel) .

Formwork ( Construction Technology BLD 60104 )

Slab Formwork

For the construction, the table form or flying form is used.

Table form is basically a a vast preassembled formwork and falsework unit, frequently forming complete bay of suspended floor section. The assembled formwork is lifted per elevator or "flown" by crane from one story to the next. It is highly suitable for constructing a flat slab.

Consist of 5 layer of Plywood with a smooth surface in order for it to be repetitively used without any damages.

Advantages:

- allow faster construction for large floor layouts.

- easy to adjust and erect assembled units into places.

- formed high quality surface finish.

- provide non-slip surfaces on decking

- can be use repetitively.

Disadvantages:

- more expensive.

- requires sufficient space to fly the table unit beyond the building line.

- requires skilled workers.

Beam formwork

For the beam formwork, the traditional timber formwork is used.

This type of formwork is built out of out of timber and plywood or moisture-resistant particleboard.

Advantages:

- easy to handle due to lightweight and requires no special tools.

- lower initial cost due to availability and cheaper production cost.

Disadvantages:

- time consuming for larger structures.

- short life span. ( Can be reused for few times only )

Column Formwork

The column formwork systems found on site are modular formwork system which consist of prefabricated timber, steel or aluminum beams and formwork modules. This allow quick assembly and erection on-site while reducing the usage of labour and crane time. It allow variety of internal face surfaces depending on the concrete finish required. Nowadays, the system are provide adjustable, reusable column forms which can be clamped on-site to give different column sizes.

Advantages:

- enhance construction speed and efficiency.

- easy handling, required less skilled labour.

- metal type of column forms can be assembled and erected easily.

- formed good quality surface finishes.

- can be used repetitively, lower life-cycle costs.

Disadvantages:

- more expensive than traditional timber formwork.

Scaffolding ( Construction Technology BLD60104 )

Independent Scaffolding

This type of scaffolding can be seen almost everywhere in the construction site. It is used inside the building and also outside of the building. As stated, the independent scaffolding requires no building support and can be place on any surfaces. Unlike putlog scaffolds, for independent scaffolding, the putlog is replaced with transom and in addition, diagonal braces are fitted between standards to give stability.

Reasons for using this type of scaffolding :

- able to remain upright without support from the building under construction.

- wider and safer access area for stair ladders and rest platforms.

- easy to assemble and disassemble.

- increase construction speed and efficiency.

Conclusion

The site visit showed me a lot of things that I learned based on theory and books only. Even though we did not get the chance to go further to upper floor, it was a very great experience for first timer like students to go to such site visit. It allowed the students to adjust themselves in the construction environment which are proved to be hot and noisy. Furthermore, it fulfilled most of our objectives, especially getting to know more of construction process and identifying the materials and equipments used. I am now able to appreciate a building construction more and this inspired me more of becoming a site Quantity Surveyor.

Description Board (Fig. 1.0)

Used to provide details on the planned construction for references.

Site Safety Board (Fig. 1.1)

Shows site safety measurement which is a requirement for every site.

Hoarding (Fig. 1.1)

Used to define the limit of site and to prevent trespasser.

Temporary House (Fig. 1.2)

Accommodation for the construction workers to ensure speed and efficiency.

Construction Container( Fig. 1.3)

Act a material storage and a carrier to transport materials to multiple level building.

Water Tank (Fig. 1.4)

Elevation water storage for the function of the nearby toilet.

Bar Bending Spaces (Fig. 1.5)

This space is used to place and prepare the required reinforcement bars readied by the bar bender.

Figure 1.4

Figure 1.5

Figure 1.3

Figure 1.0

Figure 1.2

Figure 1.1

Figure 2.0

Figure 1.8

Figure 1.7

Figure 1.9

Figure 1.6

Reinforcement-Stirrups (Fig. 1.6)

A type or form of rebar used to support main rebars.

Mobile Crane (Fig. 1.7)

Movable crane, able to withstand high loads.

Tower Crane (Fig. 1.8)

Modern form of balance crane which is fixed to ground. Widely used for high-rise building.

Electrical Generator (Fig. 1.9)

A device that convert mechanical energy to electrical energy to provide electricity to power grid.

Temporary Road (Fig. 2.0)

Road used specifically for construction purpose to avoid road damages. Usually poured wasted concrete from construction.

Starter bars (Fig 2.1)

To increase the speed of construction at joints where continuity of reinforcement is required.

Temporary Access (Fig 2.2)

Road, passage ways, hand-drails etc made for construction.

Floor Hardener (Fig. 2.3)

For hardening the upper matrix of Portland cement concrete surface.

Forklift (Fig. 2.4)

Lift and move materials in a short distance.

Column with Hardener (Fig. 2.5)

Comparison of a column with(left) and without(right) a hardener.

Steel Scaffolding (Fig. 2.6)

In figure show the pipe support scaffolding.

Power Plugs (Fig. 2.7)

Generator send electricity here for multiple uses. However, in the figure show a dangerous method of handling electrical power source.

Portlant Cement (Fig. 2.8)

Use to make concrete grade 30 and above.

Figure 2.7

Figure 2.5

Figure 2.4

Figure 2.8

Figure 2.1

Figure 2.3

Figure 2.6

Figure 2.2

Concrete in slabs and columns.

Example of loads needed for a concrete slab to withstand during construction.

Applied slab formwork

Serviced slab formwork.

Applied beam formwork.

Applied column formwork.

Used column formwork.

Figure shows independent scaffoldings prepared outside of building.

Figure shows independent scaffoldings prepared around the building and provide accesses.