Browsing Modern Building Materials, Structures and Techniques (MBMST) by Issue Date
Now showing items 1-20 of 53
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The workability kinetics of phosphogypsum binder
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)The dihydrate phosphogypsum (PG) based binder workability kinetics were investigated regarding to water-binder ratio (W/B) and chemical admixtures added to the composition of PG paste. PG was dried at 60 °C and homogenized ... -
The effect of glass powder on physical and mechanical properties of hardened cement paste
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)The article analyses the effect of finely crushed glass on the properties of hardened cement paste. Materials used for the test: Portland cement CEM I 42.5 R, finely crushed glass (particle size ≤75 µm), and water. Seven ... -
Study of the influence of the secondary raw materials on microstructure and properties of calcium silicate composite
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)Calcium silicate composites are a widely used building material, especially autoclaved aerated concrete or sand-lime bricks. The physico-mechanical properties of these materials depend on their microstructure. Microstructure ... -
Long-term properties of foamed concrete
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)Foamed concrete has been used as a building material since the early 1920s. In the beginning, it was used as an insulation material with very low density. Since then there have been attempts to improve the structural ... -
Influence of activation of microsphere and latex base addition on mechanical properties of concrete
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)In a modern civil engineering, it is important to erection construction in extremely complicated and difficult environmental conditions. Additives and admixes to concrete enable to achieved higher mechanical properties of ... -
Mechanical properties of solid glass bricks
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)Glass as one of the oldest building materials has been used for centuries to fill window openings. In recent years is it increasingly used also for load-bearing structural elements such as beams, columns, ribs, railings, ... -
Wall blocks based on the aggregates from plant wastes
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)The article considers the possibility of using agricultural waste in the development of new building materials in the form of wall blocks. When selecting the compositions, the ideal fractions and ratios of straw to flax ... -
Investigations on lightweight concrete prepared by combinations of rubber particles and expanded glass aggregate
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)Lightweight concrete is a very useful building material used in the construction sector for providing better insulation and lower energy consumption. Properties of lightweight aggregate, water-cement ratio, and other ... -
Mechanical performance of biodegradable hemp shivs and corn starch-based biocomposite boards
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)For the production of traditional building materials, excavated natural resources are used. The production process of such materials requires high-energy demands, wherefore, high amounts of CO2 gases, which have a great ... -
Effect of aggregate particle shape and granulometry on the workability and mechanical properties of glass reinforced concrete
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)Modern alkali resistant glass fibers (ARG) modified with 17% ZrO2 are getting more popular as reinforcement of cementitious matrixes. Typical matrix compositions with quartz, Portland cement, 13 mm length ARG glass fibres ... -
Fire barrier based on expanded perlite composites
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)Decreased strength of building materials as a result of flame impingement (e.g. during a fire) is one of major threats in the construction branch. For these reasons, the effectiveness of fire safety systems in various kinds ... -
Thermal resistance of alkaline fused phosphate sludge-based geopolymer mortar
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)The present study investigates the thermal behaviour of phosphate sludge-based geopolymers. Phosphate sludge which is a by-product from phosphate beneficiation processes was activated using the alkaline fusion method to ... -
Influence of partial replacement of sand with copper slag on the thermal properties of hardened concrete
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)The article presents the results of testing the effect of partial replacement of sand with fine copper slag waste on the thermal properties of hardened concrete. The impact of the replacement on mechanical properties (ie. ... -
Experimental investigation on foamed concrete produced using a planetary ball mill
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)The experimental study is devoted to investigation on foamed concrete produced applying innovative intensive mixing technology by using a planetary ball mill. Modern type of foamed concrete represents cementitious composite ... -
Mechanical properties of copper slag waste based CLSM mixtures
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)The article presents the results of investigations of the compressive strength of controlled low-strength materials (CLSM) prepared with the use of copper slag waste as a filler. Eighteen mixtures were made of which part ... -
Chemical and physical investigations of historic mortars in St. John’s Church (Cesis, Latvia)
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)This paper deals with the stone material investigation of St. John’s Church, located in Cesis, the city in central region of Latvia. Following aspects were considered – chemical, physical and granulometrical characterization ... -
Experimental study of the behaviour of cement pastes in the presence of carbon nanotubes
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)One of the methods recently applied for the noticeably improvement of properties of cementitious materials is the use of the single or multi-walled carbon nanotubes (CNTs) as nano-reinforcements in cementitious materials. ... -
Degree of MWCNT suspension dispersity and its influence on rheology of cement pastes
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)Modification of cement pastes by MWCNT (multi-walled carbon nanotubes) suspension enables to manage by their rheological properties due to the nanometer size of MWCNT. Dispersity degree of MWCNT suspension may be determined ... -
The influence of the fireclay waste on the microstructure and the physico-mechanical properties of autoclaved aerated concrete
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)Autoclaved aerated concrete is a building material with good thermal insulation properties, which it receives through the pore structure. The production of autoclaved aerated concrete consists of two phases. In the first ... -
Structure formation of construction materials modified with natural and man-made nanoadditives
(International Conference Modern Building Materials, Structures and Techniques (MBMST 2019), 2019)The article focuses on the study of influence of natural and man-made nanoformations (chrysotile fibers, carbon black, and graphite) on the formation of the structure of the material based on a hydraulic binder. The data ...