Abstract

Productivity estimating of ready mixed concrete batch plant is an essential tool for the successful completion of the construction process. It is defined as the output of the system per unit of time. Usually, the actual productivity values of construction equipment in the site are not consistent with the nominal ones. Therefore, it is necessary to make a comprehensive evaluation of the nominal productivity of equipment concerning the effected factors and then re-evaluate them according to the actual values.
 In this paper, the forecasting system was employed is an Artificial Intelligence technique (AI). It is represented by Artificial Neural Network (ANN) to establish the predicted model to estimate wet ready mixed concrete (WRMC) plant production and dry ready mixed concrete (DRMC) plant production, in addition to determining the factors affecting productivity.
 The results showed that the artificial intelligence neural network is an effective technique to estimate the productivity of the dry and wet ready mixed concrete batch plant. The ANN model showed satisfying results of validation for both training and external datasets with the range of training dataset and poor results with the data that exceeds the range of training. At the same time, the skills of the operators, frequent failure of concrete, and lack of construction materials were the most important factor that affected productivity.

Highlights

  • Productivity is considered an important indicator that affects the selection of any equipment in construction projects

  • The use of equipment includes increasing the rate of production, lowering the total cost, carrying out activities that cannot be carried out manually, maintaining the planned rate of production when there is a shortage of labor, maintaining high-quality standards, etc

  • Researchers defined productivity in different ways according to the nature of the work; all agreed that productivity is the rate of outputs to inputs (Productivity Commission Report, 2004)

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Summary

Introduction

Productivity is considered an important indicator that affects the selection of any equipment in construction projects. Equipment productivity plays the main role in estimating the time and cost of any construction project. The success of a construction project is highly connected to its machinery production (Fan, et al (2007), (Tatari, and Skibniewski, 2006). Machinery manufacturers generally supply an ideal hourly output for their machines for users This ideal hourly production is called hourly nominal output which is different from the actual hourly production of a machine in construction projects. Estimation of actual production and the discrepancies between the nominal and actual production rate is an essential element in assessing the time and cost required to finish construction. It is very important to know how different project site conditions affect the production of machinery (Peurifoy, et al, 2006)

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