@article{1098fad5-0c00-4b5c-a325-feaf5d82ceb9, author = {Andrzej Więckowski}, title = {Modelling the delivery and laying of concrete mix}, journal = {Technical Transactions}, volume = {2017}, number = {Volume 9 Year 2017 (114)}, year = {2017}, issn = {0011-4561}, pages = {127-135},keywords = {queueing theory; construction; production organisation}, abstract = {The aim of this paper is to indicate solutions which fulfil the conditions for laying concrete mix before it starts setting. Using models M/M/N/-/N, for organization I for the so-called delivery directly after unloading, with automatic transfer of information using the RFID system, and M/M/1/FIFO/N/F, for organisation II with transportation units working in closed cycle. Of example, organisation I, with RFID system is more advisable as it is characterised by a shorter waiting time on construction sites; and longer at the concretemixing plant. At the same time, it increases the efficiency of working units compared with organisation II which has self-regulating transportation units running in closed cycle.}, doi = {10.4467/2353737XCT.17.153.7165}, url = {https://ejournals.eu/en/journal/czasopismo-techniczne/article/modelling-the-delivery-and-laying-of-concrete-mix} }