Durable geoecoprotective building structures from ash foam concrete for high-rise construction

Rusanova, Ekaterina; Abu-Khasan, M

doi:10.1051/matecconf/201926505006

Cited by 2 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, the increased surface area acts as the main location for Portland precipitation, accelerating the hydration process. In the presence of water, the reaction between sodium silicate and calcium hydroxide is described as [79]:…”

Section: Nanosilica Particles (Nsi)mentioning

confidence: 99%

Improving the Self-Healing of Cementitious Materials with a Hydrogel System

Wang

Habibi²,

Marzouki

et al. 2022

Gels

View full text Add to dashboard Cite

Despite cement’s superior performance and inexpensive cost compared to other industrial materials, crack development remains a persistent problem in concrete. Given the comparatively low tensile strength, when cracks emerge, a pathway is created for gas and water to enter the cementitious matrix, resulting in steel reinforcement corrosion which compromises the durability of concrete. Superabsorbent hydrogels have been developed as a novel material for enhancing the characteristics of cementitious materials in which they have been demonstrated to decrease autogenous shrinkage and encourage self-healing. This study will detail the design and application of polyelectrolyte hydrogel particles as internal curing agents in concrete and provide new findings on relevant hydrogel–ion interactions. When hydrogel particles are mixed into concrete, they generate their stored water to fuel the curing reaction that results in less cracking and shrinkage, thereby prolonging the service life of the concrete. The interaction of hydrogels with cementitious materials is addressed in this study; the effect of hydrogels on the characteristics and self-healing of cementitious materials was also studied. Incorporating hydrogel particles into cement decreased mixture shrinkage while increasing the production of particular inorganic phases within the vacuum region formerly supplied by the swollen particle. In addition, considering the control paste, cement pastes containing hydrogels exhibited less autogenous shrinkage. The influence of hydrogels on autogenous shrinkage was found to be chemically dependent; the hydrogel with a delayed desorption rate displayed significantly low shrinkage in cement paste.

show abstract

Section: Nanosilica Particles (Nsi)mentioning

confidence: 99%

Improving the Self-Healing of Cementitious Materials with a Hydrogel System

Wang

Habibi²,

Marzouki

et al. 2022

Gels

View full text Add to dashboard Cite

show abstract

Seismic nonlinear vibration control algorithm for high-rise buildings

Qian

Zhang

Bhatt

et al. 2021

Nonlinear Engineering

View full text Add to dashboard Cite

It is necessary to study the seismic problem of buildings and structures for various safety reasons. Such as prevent and to reduce the damage caused by earthquakes to the greatest extent possible, research feasible analysis methods, and simulate the performance of the structure under earthquake action by computer, to keep its design performance in future earthquake action, and to ensure the safety of people's lives and property. The seismic design based on nonlinear vibration control is proposed. SAP2000 structure analysis software is used to establish the seismic structure model, foundation isolation model, and floor isolation model of a 15-story large chassis frame structure, the nonlinear time-history analysis of the three models under the action of multiple and rare earthquakes is carried out, and the period, displacement and acceleration of the isolated structure and the aseismatic structure are compared. The results show that, under the action of multiple earthquakes, the base shear of foundation isolation is 1208.06 kN, and the floor isolation is 926.43 kN, which are 0.37 and 0.3 of the base shears of the aseismatic structure, respectively. Under the action of rare earthquakes, the base-isolation shear is 4039.59 kN, and the story isolation shear is 3119.99 kN, which are, respectively, 0.4 and 0.31 of the base-isolation shears of the aseismatic structure. This method provides a reliable evaluation for nonlinear seismic response analysis of large complex high-rise buildings and provides an effective reference.

show abstract

Durable geoecoprotective building structures from ash foam concrete for high-rise construction

Cited by 2 publications

References 2 publications

Improving the Self-Healing of Cementitious Materials with a Hydrogel System

Improving the Self-Healing of Cementitious Materials with a Hydrogel System

Seismic nonlinear vibration control algorithm for high-rise buildings

Contact Info

Product

Resources

About