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The most widely used building materials in the world are those based on Portland cement. Unfortunately, their use is associated with a number of negative environmental impacts, from CO2 emissions to the depletion of natural aggregate resources. In order to contribute to greater environmental responsibility, this work investigated building materials containing both alternative binders and fillers. Magnesium oxychloride cement (MOC) is considered to be a more sustainable binder than Portland cement and is characteri...

Historical building structures are vital in illuminating human history. Ensuring their preservation and passing them down to future generations is of great importance. The preservation and restoration of historical buildings constitute a complex and highly relevant issue, wherein the criteria for compatibility in the selection and development of appropriate materials and application technologies are of significant importance. In historical context, the enhancement of lime mortar properties was achieved through the...

Human activities on a global scale are increasingly generating substantial quantities of solid waste. Consequently, in recent years, there has been a significant worldwide initiative to reduce waste production and reuse existing waste, including non-recyclable plastics, industrial waste, sewage sludge, hazardous waste, municipal waste, among others. To ensure environmental quality, further treatment of waste is essential to prevent its accumulation in landfills. For waste materials that cannot be recycled or for w...

This paper describes the influence of biomass ash (BA) from wooden chips processing on the properties of magnesium potassium phosphate cement (MKPC) mortar. The MKPC belongs to chemically bonded cementitious binders and is formed through the reaction between the dead burned magnesia (MgO), KH2PO4 and water. The dead burned magnesia powder as well as the biomass ash were first analysed by XRF, particle size distribution and specific density. In the production of MKPC-based composites, the biomass ash was used in th...

Magnesium oxychloride (MOC) cement-based composites were studied in the presented paper. As filler, silica sand was used and partially replaced with fly ash from coal combustion. First, the chemical composition and basic physical properties of raw materials were tested. For the hardened composites, bulk density, specific density, and total open porosity were measured. Among mechanical parameters, flexural and compressive strengths were determined. The thermal performance of composites was studied using a transient...

Magnesium potassium phosphate cement (MKPC) is a chemically bonded cementitious binder prepared by mixing dead burned magnesia powder with KH2PO4 and water. Comparing with conventional Portland cements, MKPCs exhibit some advantageous parameters as low dry shrinkage and high early compressive strengths that predestine them mainly for rapid repair of infrastructure. To reduce the heat evolution and cost related to the use of this type of cement, MKPC was blended with 30-50 % by mass of biomass ash. Dead burned magn...

Biomass combustion represents a renewable energy source and helps to reduce carbon emission. As the amount of solid residuals from biomass combustion will increase in a near future, the newly designed lime-based plaster modified with pozzolana active biomass ash was studied in this paper. Reference lime plaster and plaster with 15% binder replacement by mass with wood chips ash (WCHA) were the subject of an extensive experimental campaign. As there was a reduction in mechanical parameters for plaster with incorpor...

The stone dust coming from stone processing plant located in Ostrom??, 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 Podhorn? ?jezd. Before the characterization tests, the delivered stone dust was sieved on a certificate test sieve with a 0.25 mm mesh size. First, basi...