All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Pozzolana active wheat straw ash as admixture for cement-based construction materials

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43918380" target="_blank" >RIV/60461373:22310/17:43918380 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.5593/sgem2017/62/S26.044" target="_blank" >http://dx.doi.org/10.5593/sgem2017/62/S26.044</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.5593/sgem2017/62/S26.044" target="_blank" >10.5593/sgem2017/62/S26.044</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Pozzolana active wheat straw ash as admixture for cement-based construction materials

  • Original language description

    Cement manufacturing has been always ranked in the list of the main sources of carbon emissions among industrial activities. Almost 5-7% of global CO2 emissions are caused by cement plants, while about 900 kg CO2 is emitted to the atmosphere for producing one ton of cement. On this account, there is laid pressure to reduce cement consumption by the use of alternative binders. In this paper, we would like to show that wheat straw ash can be used for the fabrication of construction composites with lower cement content. Biomass ash from packed wheat straw was characterized using X-Ray fluorescence, X-Ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. In the next step, the ash pozzolanic activity was accessed using Chapelle test. Since the examined biomass was pozzolana active, it was used as partial Portland cement replacement in blended binder based pastes. The content of biomass ash in paste mixes was 10, 15 and 20 mass% of cement respectively. The water/binder ratio was 0.4. For the casted paste samples, bulk density, matrix density, and total open porosity were measured. In order to prove pozzolanic character of the wheat straw ash, mechanical resistivity of paste samples was tested. In these tests, compressive strength and flexural strength were measured and strength activity index was calculated. Experimental data showed that an application of biomass as from combustion of wheat straw in the amount up to 20 mass% of cement provided sufficient mechanical resistivity of the cement paste. In summary, the analysed ash was found to be prospective material for concrete industry contributing to the reduction of CO2 emission.

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    20102 - Construction engineering, Municipal and structural engineering

Result continuities

  • Project

    <a href="/en/project/GA17-02815S" target="_blank" >GA17-02815S: Research and development of high performance composites containing biomass ash</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2017

  • Confidentiality

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

Data specific for result type

  • Article name in the collection

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

  • ISBN

  • ISSN

    1314-2704

  • e-ISSN

  • Number of pages

    8

  • Pages from-to

    351-358

  • Publisher name

    SGEM International Multidisciplinary Scientific Geoconference

  • Place of publication

    Sofia

  • Event location

    Albena

  • Event date

    Jun 29, 2017

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article