Predicting Performance of Lightweight Concrete with Granulated Expanded Glass and Ash Aggregate by Means of Using Artificial Neural Networks

Abstract

Lightweight concrete (LWC) is a group of cement composites of the defined physical, mechanical, and chemical performance. The methods of designing the composition of LWC with the assumed density and compressive strength are used most commonly. The purpose of using LWC is the reduction of the structure’s weight, as well as the reduction of thermal conductivity index. The highest possible strength, durability and low thermal conductivity of construction materials are important factors and reasons for this field’s development, which lies largely in modification of materials’ composition. Higher requirements for construction materials are related to activities aiming at environment protection. The purpose of the restrictions is the reduction of energy consumption and, as a result, the reduction of CO2 emission. To limit the scope of time-consuming and often high-cost laboratory works necessary to calibrate models used in the test methods, it is possible to apply Artificial Neural Networks (ANN) to predict any of the concrete properties. The aim of this study is to demonstrate the applicability of this tool for solving the problems, related to establishing the relation between the choice of type and quantity of lightweight aggregates and the porosity, bulk density and compressive strength of LWC. For the tests porous lightweight Granulated Expanded Glass Aggregate (GEGA) and Granulated Ash Aggregate (GAA) have been used.

Thermal and Mechanical Properties of Cement Mortar Composite Containing Recycled Expanded Glass Aggregate and Nano Titanium Dioxide

“…Moreover, the compressive strengths of 6.68-12.49 MPa obtained for EGA cement mortar. In another attempt, [27] investigated the possibility of using artificial neural networks to design the composition of cement composite containing EGA with the desired properties. They established the relation between the quantity of EGA and the porosity, bulk density, and compressive strength of a cement composite.…”

The Effect of Fly Ash Microspheres on the Pore Structure of Concrete

“…The scientists proved that it is good way to effectively raise the utilization rate of fly ash. The microspheres can be used to produce various lightweight construction products, including lightweight cements, aggregates in lightweight concrete [13][14][15], and porous glass crystalline molded blocks for the removal and solidification of liquid and other hazardous wastes. In addition, they have been studied for the production of ceramic composite foams with different properties.…”

Experimental and Numerical Investigation of Mechanical Properties of Lightweight Concretes (LWCs) with Various Aggregates

“…Various lightweight concrete mixtures, including three lightweight concrete mixtures with different expanded glass granule amounts and three lightweight concrete mixtures with different amounts of sand, were prepared to identify the relationships between the mechanical and thermal properties of various amounts of incorporated expanded glass granules and sand in the mixtures. Mechanical and physical properties were tested, and thermal conductivity was observed [36][37][38][39].…”