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AN EVALUATION OF FACTORS AFFECTING MATERIALS MANAGEMENT IN CONSTRUCTION SITE, A CASE STUDY OF IMO STATE

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CHAPTER ONE

INTRODUCTION

1.1 Background of the Study

Material management can be defined as a process that coordinates planning, assessing the requirement, sourcing, purchasing, transporting, storing and controlling of materials, minimizing the wastage and optimizing the profitability by reducing cost of material. Baldva (1997) noted that Materials management is a process for planning, executing and controlling field and office activities in construction. While Eduardo (2002) viewed Materials management as the system for planning and controlling all of the efforts necessary to ensure that the correct quality and quantity of materials are properly specified in a timely manner, are obtained at a reasonable cost and most importantly are available at the point of use when required.

According to Khyomesh and Chetna, (2011) Building materials account for 60 to 70 percent of direct cost of a project or a facility, the remaining 30 to 40 percent being the labour cost. Therefore, efficient procurement and handling of material represent a key role in the successful completion of the work. It is important for the project manager to consider that there may be significant difference in the date that the material was requested or date when the purchase order was made, and the time at which the material will be delivered. These delays can occur if the contractor needs a large quantity of material that the supplier is not able to produce at that time or by any other factors beyond his control. Chan (2002) noted that the project manager should always consider that procurement of materials is a potential cause for delay. The management of Construction processes to reduce, reuse, recycle and effectively dispose of wastes has a serious bearing on the final cost, quality, time and impact of the project on the environment. (Dania, 2007)

The goal of materials management is to ensure that construction materials are available at their point of use when needed. The materials management system attempts to ensure that the right quality and quantity of materials are appropriately selected, purchased, delivered and handled on site in a timely manner and at a reasonable cost, (khyomesh and chetna 2011). The scope of materials waste is vast, and this waste occurs in the industry irrespective of the size of the building firm, instructions about handling, storage and stacking are not provided with the goods or sent in advance to the site (Abdulazeez, 2000).

Materials management in construction is also regarded as the efficient use of goods and equipment before, during and upon completion of a building process. Petra (2013) observed that Successful materials management requires the participation of all persons involved in a construction process. For Materials may deteriorate during storage or get stolen unless special care is taken. Delays and extras expenses may be incurred if materials required for particular activities are unavailable. Ensuring a timely flow of materials is an important concern of material management (Shah, 1993).

Thus, Materials management is an important element in project management. Materials represent a major expense in construction, so minimizing procurement costs improves opportunities for reducing the overall project costs. Poor materials management can result in increased costs during construction. On the other hand, efficient management of materials can result in substantial savings in project costs. If materials are purchased too early, capital may be held up and interest charges incurred on the excess inventory of materials (Wendy, 2006).

Johnston (2001) opined that Material Management is divided between head office and site in major construction companies. The selection, pricing, ordering, preparation of schedules and payment accounts are dealt with at head office, learning the receipt storage, protection and use of materials to management on site. Due to the high cost of materials, if not properly managed during the period of execution of contract can lead to abandonment of project.

In his submission, lan (2008), opined that the rate at which materials are been squandered on site due to poor management is getting too rampant in our society and if not curbed, it can jeopardize the future of our construction industry. This is particularly true in view of the fact that mismanagement of construction resources (i.e materials, plants and labour) affects the continuity and profit margin of such project and if not checked can lead to technical insolvency or bankruptcy.

Therefore, attention must be paid to how materials are been procured, stored and managed in order to achieve perfect work, effective handling of materials, right usage of materials and control of construction resources.

This, explain the reason why Johnston (2001), noted that Materials management begins with planning and estimation, these can be achieved through proper site co-ordination measure of reducing wastes, the location and security of materials on sites, procurement of quality materials as being specified and effective administration of site together with quality control.

Lee and Donald (2001), observed that the problem associated with the absence of proper materials management on construction site could be wastage of resources making contract cost more than budget sum, reduction of profit margin of the contractor ineffectiveness of project handlings reduction of output etc. and if these are not properly taken care of it might be disastrous to the firm.

No construction project can commence and proved effective without an adequate supply of raw materials, apart from the careful planning of materials required by the builder, it is to his advantage to foster a good relationship with the suppliers, many of whom will have been selected due to their fulfillment of orders to the standard required and meeting of delivery times over a number of years (Pheng and Chuan, 2001).

Besides the builder’s own suppliers, the architect may specify that a certain supplier must be used and these are termed “nominated supplier” whatever the type of suppliers to be used, the information passed to them and receive from them is the same and in all but in the smallest firms this information and document will pass through the buyer. (Yang, et al., 2003).The buyer must also ensure that the architect receives any samples from the suppliers in the very early stage of contract procedure to satisfy him of the relative merits of the material. It may, for example, not be possible to obtain the specified material in time in conjunction with the building programme, but by obtaining samples of similar products the architect may decide on a new form of construction or design to prevent hold ups.

In most cases, a buyer will send enquiries to two or three suppliers or in some cases, direct to manufacturers for such items as sand, gravel, brick, block, cement etc., regarding prices, delivery dates and such, for use at the estimating stage of the project. This will enable the estimator to use the figures obtained in the preparation of the tender figure.

To enable quick checks to be made on delivery or non-delivery of materials a card index system is generally adopted, this enables the purchasing or procurement department to keep a constant eye on the supplies. These cards contain all necessary information and are best filed in date offer for case of reference. Even when bulk delivers have been placed according to programme, by taking the extra time and trouble to write out a card for each delivery the chance of losing sight of the delivery date is very much reduced, as regular checks will be on the file. As materials are received, the information will be recorded on the card.

Construction projects can be accomplished by utilizing management processes and these processes include planning, organizing, executing, monitoring, and controlling (Ahuja et al 1994 in Al Haddad 2006). During any construction project the three inter-related factors of time, cost, and quality need to be controlled and managed. Successful completion of projects requires all resources to be effectively managed. Prabu and Baker, (2006) regard Materials management as a means to achieve better productivity, which should be translated into cost reduction. For, according to Ademeso and Windapo (2008), poor planning and control of materials, lack of materials when needed, poor identification of materials, re-handling and inadequate storage cause losses in labor productivity and overall delays that can indirectly increase total project costs. Effective management of materials can reduce these costs and contribute significantly to the success of the project.

 

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