Physical and Mechanical Properties of Cemented Ash-Based Lightweight Building Materials with and without Pumice

Neslihan Doğan-Sağlamtimur,Ahmet Bilgil,Adnan Güven

doi:10.1155/2018/9368787

Neslihan Doğan-Sağlamtimur, Ahmet Bilgil + Show 1 more

Open Access

https://doi.org/10.1155/2018/9368787

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Abstract

Pumice, cements (CEM I- and CEM II-type), waste fly and bottom ashes (IFA, GBA, and BBA) supplied from international companies were used to produce lightweight building materials, and physical-mechanical properties of these materials were determined. Axial compressive strength (ACS) values were found above the standards of 4 and 8 MPa (Bims Concrete (BC) 40 and 80 kgf/cm2 class) for cemented (CEM I) pumice-based samples. On the contrary, the ACS values of the pumice-based cemented (CEM II) samples could not be reached to these standards. Best ACS results (compatible with BC80) from these cemented lightweight material samples produced with the ashes were found in 50% mixing ratio as 10.6, 13.2, and 20.5 MPa for BBA + CEM I, GBA + CEM II, and IFA + CEM I, respectively, and produced with pumice were found as 8.4 MPa (same value) for GBA + pumice + CEM II (in 25% mixing ratio), BBA + pumice + CEM I (in 100% mixing ratio), and pumice + IFA + CEM I (in 100% mixing ratio), respectively. According to the results, cemented ash-based lightweight building material produced with and without pumice could widely be used for constructive purposes. As a result of this study, an important input to the ecosystem has been provided using waste ashes, whose storage constitutes a problem.

Highlights

In the industry, there is the tripod of raw material-process product, and waste formation is an inevitable problem in most industrial establishments [1]
Experiments conforming to the relevant standards were carried out on different proportions of pumice, IFA, BBA, and GBA-based cemented (CEM I and CEM II) sample. ese experiments included 7- and 28-day Axial compressive strength (ACS), unit weight (UW), WAP, porosity, and ACS after freeze-thaw
Important parameters of cemented lowcost, durable lightweight building materials that are produced from pumice and waste ashes of two industrial plants and a thermal power plant that have different waste ash problems and different ash compositions are visualized in Figures 5–10 to better interpret their performance assessment

Summary

Introduction

There is the tripod of raw material-process product, and waste formation is an inevitable problem in most industrial establishments [1]. Unal et al [21] investigated the effect of using pumice and Afyon Tınaztepe regional diatomite materials in the production of lightweight concrete block elements on properties of concrete. In their experimental study, they produced different series at different ratios by using pumice and diatomite of three different grain groups as lightweight aggregate, sand and crushed sand as normal aggregate. It was aimed to solve the waste ash problem emerging from coal, which is used for producing energy in the industry and thermal power plants, as well as producing lightweight building materials by evaluating the utilization efficiency of BA, FA, pumice, and cement. It has given a new dimension to the existing knowledge of lightweight building materials

Materials and Methods

Experimental

Results and Discussion