Nano-Structured Portlandite Aluminosilicate Contact Condensation Systems of Hardening and Composites on Their Basis

Stepanova, M. P.; Potamoshneva, N. D.; Chernyshov, E. M.; Bazhenov, Yuri

doi:10.22227/1997-0935.2013.2.114-122

Cited by 4 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The tests were conducted in a dry and water-saturated state, by which the softening coefficient of the material was calculated. [4] The characteristics of the structure and properties of the samples were evaluated by testing small samples, the number of samples in which ranged from 6 to 12. Confidence intervals of estimates of the mathematical expectation of the studied parameters were set with a probability of 0.95.…”

Section: When Producing a Composite In The Studies Implemented Two Ve...mentioning

confidence: 99%

“…The battle of ceramic brick was chosen as the most interesting representative of technogenic type. [5] The structural-significant physical-mechanical and physical-chemical characteristics of these two types of aluminosilicate components adopted for the study were tested. Dispersed and electron microscopic analysis showed that the fine-milled aluminosilicate components can be attributed to the fine -and micro-dimensional (Fig.…”

Section: Aluminosilicates As a Structure-forming Component Of Portlan...mentioning

confidence: 99%

See 1 more Smart Citation

Technology of Building Composites on the Basis of Portlandite-Aluminosilicate Contact Condensation Systems of Hardening

Tereshkin

Kirichkova

Kruglyak

2019

KEM

View full text Add to dashboard Cite

Since ancient times, lime, lime pozzolanic, lime-cement, lime-clay binders, the compositions of which our ancestors found empirically, widely and everywhere used in construction. Even in the first half of the XX century, these binders occupied a significant place in the construction practice. The development of production and the relative availability of cement led to a significant reduction in demand for many clinker-free, including lime (Portland) binders. Today, the priorities of scientific and applied technological developments of both traditional building materials and materials of new generations are determined by the actualization of the concept and criteria of resource saving and energy efficiency.

show abstract

Section: When Producing a Composite In The Studies Implemented Two Ve...mentioning

confidence: 99%

Section: Aluminosilicates As a Structure-forming Component Of Portlan...mentioning

confidence: 99%

Technology of Building Composites on the Basis of Portlandite-Aluminosilicate Contact Condensation Systems of Hardening

Tereshkin

Kirichkova

Kruglyak

2019

KEM

View full text Add to dashboard Cite

show abstract

“…It was shown that the metastable phase of amorphous calcium hydrosilicates C-S-H, the main phase of the hardened cement stone, possesses contactcondensation properties. Later E.M. Chernyshov and his co-workers established [3] that a pure portlandite stone, compressed at 100 MPa, as well as portlandite-aluminosilicate stone obtained by contact hardening, can possess sufficient water resistance [4]. The principle of "contact hardening" is based on the ability of dispersing silicate and aluminosilicate substances, which are in an amorphous unstable state, to form a water-resistant stone with high strength at the moment of an approach of the particles during compaction.…”

Section: Introductionmentioning

confidence: 99%

Contact strength of C-S-H cement phase

et al. 2019

View full text Add to dashboard Cite

The object of the study was the cement phase C-S-H – X-ray amorphous calcium hydrosilicates, obtained by steaming at 80°C together limestone and silica at different molar ratios CaO/SiO2 = 0.5; 1.0; 1.5. The contact strength of the C-S-H phase with additions of portlandite, silica and alumina zols, high-aluminate slag was estimated by hyper-pressing method with subsequent destruction. It was established that the contact strength of the cement phase increases in proportion to the specific pressing pressure, the age of samples and inversely the phase basicity reaching 12 MPa. It was evidenced that additives increase the contact strength of the C-S-H stone. The features of the phase formation during the hydration of calcium aluminates were considered. It was established that there is no negative effect of additional porosity on the strength of the stone, because the restructuring of calcium hydroaluminates takes place during hyper-pressing. The specific behavior of low-basic calcium aluminates in a mixture with the C-S-H phase was established in the case of using high-aluminate slag, which consists in additional formation Al(OH)3 gel during the hydration, that is provide an increase in the contact strength of the compositions.

show abstract

“…The dry mixes are modified fine-grained building material, which includes mineral binders (cement, lime, gypsum, redispersion polymer compositions), fillers with the optimal granulometry and a certain fractional composition, as well as the necessary chemical modifying additives [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Evaluations of Efficiency of the Use of Amorphous Alumosilicates in Dry Mixes

Zhegera

Pyshkina

Martyashin

2019

MSF

View full text Add to dashboard Cite

The article presents the results of the market research of dry mixtures produced in the Russian Federation. The established that glue dry construction mixes are in great demand. Information on the main produced glue dry mixes presented in the Russian market presented. The formulation of tile glue containing amorphous aluminosilicates as a modifying additive developed. The established that the synthesized aluminosilicates have a high activity equal to 350 mg/g. It has been established that samples of cement-based tile adhesive are characterized by high adhesion strength, which is more than Rkog = 1.4 MPa and Radg> 1.1 MPa. In the article carried out the estimation of technical and economic indicators of production of the adhesive dry mixes. The shown that the developed formulation of glue dry mixes is economically efficiency.

show abstract

Nano-Structured Portlandite Aluminosilicate Contact Condensation Systems of Hardening and Composites on Their Basis

Cited by 4 publications

References 0 publications

Technology of Building Composites on the Basis of Portlandite-Aluminosilicate Contact Condensation Systems of Hardening

Technology of Building Composites on the Basis of Portlandite-Aluminosilicate Contact Condensation Systems of Hardening

Contact strength of C-S-H cement phase

Evaluations of Efficiency of the Use of Amorphous Alumosilicates in Dry Mixes

Contact Info

Product

Resources

About