Research of structuring processes of non-autoclave foam concrete with introduction of mineral additives

Mashkin, N.A.; Bartenjeva, E

doi:10.1088/1757-899x/451/1/012018

Cited by 3 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further optimization of the properties of foam concrete was carried out through the use of dispersed wollastonite and diopside. The introduction of these additives makes it possible to improve the resistance of the foam in the mortar mixture of the foam concrete structure and to obtain a larger volume of air entrainment [5,8], while the average density of the foam concrete decreases (Table 1).…”

Section: Experimental Partmentioning

confidence: 99%

“…Due to the chemical affinity for cement stone minerals, diopside and wollastonite [6] provide a more durable contact layer between the additive and the cement stone. Wollastonite and diopside act as additional centers of crystallization, which as a result increases the stability of the foam in the mortar and allows to get a homogeneous structure of the foam concrete mixture and to prevent its shrinkage [7,9].…”

Section: Experimental Partmentioning

confidence: 99%

See 1 more Smart Citation

Studies of Heat Insulation Concrete

Elesin

Mashkin

Bartenjeva

et al. 2020

MSF

View full text Add to dashboard Cite

The article analyzes the properties changes of non-autoclave foam on a protein foaming agent with the introduction of dispersed wollastonite and diopside. A decrease in the density of foam concrete (to the grade D300, D400), frost resistance of the material, as well as shrinkage deformations was noted. The optimal technological parameters have been determined, allowing to obtain more stable properties and structure of heat-insulating cement-ash non-autoclave foam concrete. The flow chart of the production of foam concrete of natural hardening in the separate preparation of foam and mortar is presented. The studies were performed at NSTU and NGASU (Novosibirsk) and the NII (Norilsk).

show abstract

Section: Experimental Partmentioning

confidence: 99%

Section: Experimental Partmentioning

confidence: 99%

Studies of Heat Insulation Concrete

Elesin

Mashkin

Bartenjeva

et al. 2020

MSF

View full text Add to dashboard Cite

show abstract

“…Adding microspheres of perlite to foam concrete reduces its thermal conductivity coefficient to 0.062 W/(m• o C) [35]. The use of basalt and glass fiber, fine additives of wollastonite and diopside reduces the thermal conductivity coefficient to 0.069-0.097 W/(m o C) [36]. The work [1] shows the experimentally obtained thermal conductivity resistance of the enclosure structure from thin-wall profiles with foam concrete.…”

Section: Introductionmentioning

confidence: 99%

Combustibility of lightweight foam concrete based on natural protein foaming agent

Rybakov

Seliverstov²,

Usanova

et al. 2021

E3S Web Conf.

View full text Add to dashboard Cite

There is an experimental study of samples of monolithic foam concrete “SOVBI” with a density of 205 kg /m3 (grade D200) for combustibility. The evaluation criteria are the following values of combustion characteristics: temperature increment in the furnace, duration of the stable flame burning, sample mass loss. The experimental results show the following values for foam concrete: temperature increment in the furnace of 2 °C, duration of the stable flame burning of 0 s, and sample mass of 24.4%. Thus, monolithic foam concrete with a density of 205 kg/m3 is noncombustible material. It is proposed to use monolithic foam concrete and other lightweight monolithic cellular foam concrete, as a structural fire protection for lightweight steel concrete structures. It, in turn, can increase the fire resistance of external walls and floor structure with the steel frame of cold-formed zinc-coated profiles.

show abstract

Thermal Properties of Lightweight Steel Concrete Wall Panels under Different Humidity Conditions

Rybakov

Ananeva²,

Seliverstov³

et al. 2022

Materials

View full text Add to dashboard Cite

The paper presents the thermal properties of lightweight steel concrete wall panels under different humidity conditions: under normal operation conditions and high moisture of the structure. The total thermal resistance (considering thermal inhomogeneity) of the enclosing lightweight steel concrete structure with a thickness of 310 mm using monolithic low-density foam concrete (density grade of D200), at an equilibrium humidity of 5% and 8%, was experimentally established. It was equal to 4.602 m2.0C/W and 4.1 m2.0C/W, respectively. In the dry state, the total thermal resistance of this structure was 5.59 m2.0 C/W, which corresponds to a thermal conductivity coefficient of 0.057 m °C/W. The influence of both horizontal and vertical joints of lightweight steel concrete wall panels and the absence of thermoprofiles on thermal properties was insignificant when using heat-insulating gaskets. The actual total thermal resistance of the structure was 2.5–2.8 times higher than that obtained by calculation under high-humidity conditions (29–32%). At the same time, the decrease in the value compared to the same value at an equilibrium humidity of 5% was only 4–6%. This indicates the good workability even of a structure with high-humidity foam concrete if the reduced total thermal resistance is complied with by the standardized one.

show abstract

Research of structuring processes of non-autoclave foam concrete with introduction of mineral additives

Cited by 3 publications

References 5 publications

Studies of Heat Insulation Concrete

Studies of Heat Insulation Concrete

Combustibility of lightweight foam concrete based on natural protein foaming agent

Thermal Properties of Lightweight Steel Concrete Wall Panels under Different Humidity Conditions

Contact Info

Product

Resources

About