A physical model for the prediction of lateral stress exerted by self-compacting concrete on formwork

10.1617/14378 ◽  
2005 ◽  
pp. 0-0
Author(s):  
G. Ovarlez
Keyword(s):  
Physical Model ◽  
Lateral Stress ◽  
Self Compacting Concrete

PENGARUH PENGGANTIAN SEBAGIAN SEMEN DENGAN LIMBAH ABU VULKANIK TERHADAP KUAT TEKAN BETON SCC

KURVATEK ◽  
2018 ◽  
Vol 2 (2) ◽  
pp. 1-10
Author(s):  
RETNOWATI Setioningsih
Keyword(s):  
Self Compacting Concrete

Dalam abu vulkanik dan semen unsur kimia yang paling utama adalah silica.  Dibeberapa negara abu vulkanik sering dijadikan bahan campuran untuk membuat semen dan material beton.  Beton banyak dipakai sebagai bahan bangunan, namun dalam proses pengecoran sering mengalami kendala dikarenakan jarak tulangan yang terlalu rapat.  Salah satu perkembangan teknologi beton adalah beton Self Compacting Concrete (beton SCC).Tulisan ini membahas pemanfaatan abu vulkanik untuk aplikasi beton SCC. Uji eksperimental dilakukan untuk mengetahui pengaruh abu vulkanik di beton SCC, yang digunakan dengan penambahan dan penggantian parsial mulai dari 0% sampai dengan 10% berdasarkan berat bahan semen. Pengujian kuat tekan dilakukan dengan menggunakan tiga spesimen silinder standar untuk setiap data. Hasil pengujian menunjukkan bahwa abu vulkanik dapat memperbaiki kuat tekan beton SCC dengan metode penambahan dan penggantian semen dengan dosis optimum 5% berat semen.Kata kunci : abu vulkanik, semen, material beton dan beton SCC

EXPERIMENTAL STUDIES OF CAR PROPERTIES ON A PHYSICAL MODEL

2019 ◽  
pp. 10-16
Author(s):  
Oleksii Timkov ◽  
Dmytro Yashchenko ◽  
Volodymyr Bosenko
Keyword(s):  
Mathematical Model ◽  
Remote Control ◽  
Physical Model ◽  
Model Experiment ◽  
Experimental Studies ◽  
Electrical Energy ◽  
Short Term ◽  
Motor Current ◽  
Memory Card ◽  
The Mathematical Model

The article deals with the development of a physical model of a car equipped with measuring, recording and remote control equipment for experimental study of car properties. A detailed description of the design of the physical model and of the electronic modules used is given, links to application libraries and the code of the first part of the program for remote control of the model are given. Atmega microcontroller on the Arduino Uno platform was used to manage the model and register the parameters. When moving the car on the memory card saved such parameters as speed, voltage on the motor, current on the motor, the angle of the steered wheel, acceleration along three coordinate axes are recorded. Use of more powerful microcontrollers will allow to expand the list of the registered parameters of movement of the car. It is possible to measure the forces acting on the elements of the car and other parameters. In the future, it is planned to develop a mathematical model of motion of the car and check its adequacy in conducting experimental studies on maneuverability on the physical model. In addition, it is possible to conduct studies of stability and consumption of electrical energy. The physical model allows to quickly change geometric dimensions and mass parameters. In the study of highway trains, this approach will allow to investigate the various layout schemes of highway trains in the short term. It is possible to make two-axle road trains and saddle towed trains, three-way hitched trains of different layout. The results obtained will allow us to improve not only the mathematical model, but also the experimental physical model, and move on to further study the properties of hybrid road trains with an active trailer link. This approach allows to reduce material and time costs when researching the properties of cars and road trains. Keywords: car, physical model, experiment, road trains, sensor, remote control, maneuverability, stability.

TO PHYSICAL MODEL OF THE VACANCY CLUSTER TUBES FORMATION AND METAL PROPERTIES CHANGES AFTER DYNAMIC CENTRIFUGAL CASTING

2016 ◽  
pp. 96-103
Author(s):  
E. M. Solovyov ◽  
V. I. Novikov ◽  
B. V. Spitsyn ◽  
M. R. Kiselev ◽  
V. A. Sorokin ◽  
...  
Keyword(s):  
Physical Model ◽  
Centrifugal Casting ◽  
Vacancy Cluster ◽  
Metal Properties

Effect of Local Mineral Additions on the Shrinkage of Self-Compacting-Concrete

2017 ◽  
Vol 8 (2) ◽  
pp. 47
Author(s):  
F. Benmerioul ◽  
Abdelkadir Makani ◽  
Ahmed Tafraoui ◽  
Said Zaouai
Keyword(s):  
Self Compacting Concrete ◽  
Mineral Additions
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