A study on the possible use of sandstone dust as fine aggregate in mortar mix design

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43916098" target="_blank" >RIV/60461373:22310/18:43916098 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.5593/sgem2018/6.3/S26.002" target="_blank" >http://dx.doi.org/10.5593/sgem2018/6.3/S26.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2018/6.3/S26.002" target="_blank" >10.5593/sgem2018/6.3/S26.002</a>

Result language

angličtina

Original language name

A study on the possible use of sandstone dust as fine aggregate in mortar mix design

Original language description

The stone dust coming from stone processing plant located in Ostroměř, Czech Republic, was examined in the presented paper as an alternative recyclable environment-friendly material which can be effectively being used in construction as partial replacement of natural sand. The tested dust is grey-brown colored and is a byproduct of sandstone processing from quarry Podhorní Újezd. Before the characterization tests, the delivered stone dust was sieved on a certificate test sieve with a 0.25 mm mesh size. First, basic physical properties and particle size distribution of stone dust were tested. Chemical and mineralogical composition and morphology of stone dust were characterized using X-Ray fluorescence, X-Ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. The pozzolanic activity of stone dust was tested using both the Frattini and Chapelle tests. Then, the studied stone dust was used in composition of cement-based mortar in order to evaluate its effect on mortar mechanical resistance. In mortar composition, 25 mass% of natural sand was replaced with stone dust. Although the used stone dust was not pozzolana active, its incorporation into mortar mix led to the decrease in porosity and thus to the increase in mechanical parameters, such as compressive strength, flexural strength and dynamic Young’s moduli. Based on the obtained data, the researched stone dust was found to be prospective alternative material having great potential to replace natural sand in mortar mix design, whereas both environmental and financial benefits of its use are quite obvious.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10402 - Inorganic and nuclear chemistry

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

International Multidisciplinary Scientific GeoConference Surveying Geology and Mining Ecology Management, SGEM

ISBN

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ISSN

1314-2704

e-ISSN

neuvedeno

Number of pages

8

Pages from-to

11-18

Publisher name

SGEM International Multidisciplinary Scientific Geoconference

Place of publication

Sofia

Event location

Sofia

Event date

Jul 2, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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