A5044562889- Concrete and Cement Materials Research
- Magnesium Oxide Properties and Applications
- Innovative concrete reinforcement materials
- Recycling and utilization of industrial and municipal waste in materials production
- Building materials and conservation
- Drilling and Well Engineering
- Grouting, Rheology, and Soil Mechanics
- Material Properties and Applications
- Rock Mechanics and Modeling
- Polymer composites and self-healing
- Microbial Applications in Construction Materials
- CO2 Sequestration and Geologic Interactions
North China University of Water Resources and Electric Power
2022-2024
Waste Pisha sandstone (WPS) is the main damming material for check dam in Loss Plateau of northwest China. The dissolution characteristics WPS alkaline solutions were investigated as a basis studying modification materials and revealing mechanism to further study pozzolanic activity development cementitious concrete utilizing WPS. In this paper, was milled calcined at 600 °C, 700 800 respectively. After that, activated immersed 0.05, 0.1, 0.5, 1.0, 2.0, 5.0 M NaOH leaching tests. two curing...
Producing low-carbon clinker-free engineering material is beneficial to environmental protection and energy conservation. This paper reports the utilization of natural Pisha sandstone (PS) as a new precursor manufacture an environment-friendly composite in combination with solid waste (BFS, FA, SF). The curing conditions PSCM have been reported limited extent few studies. In this study, special attention was given mechanical properties hydration progress three different materials (PSCM)...
The Yellow River has the highest sediment concentration in world, and coarse mainly comes from a particular kind of argillaceous sandstone, Pisha sandstone. This paper reports an investigation possibility development low-cost engineering materials using sandstone via ion exchange modification. effect modifiers with different on inhibition volume expansion strength enhancement modified were studied solidification. effects ten types modifier solutions curing age considered. hydration mineral...
Dolomite dust waste (DDW) has the potential to be used as an expansive agent for mortar due its richness in magnesium and calcium. This paper reports possibility of developing low-cost using DDW through various activation methods. The changes physicochemical properties activated shrinkage resistance, flexural strength, compressive strength composite prepared by partially replacing cement were systematically investigated. hydration products microstructure DDW-composite investigated XRD...
The treatment of silted sediment in the river is a global problem. accumulation waste will lead to an adverse impact on environment. In this paper, was reused produce geopolymer composite materials via alkali-activated gelling modification. effects modifiers sodium silicate solution, quicklime, and Na2SO4 admixture, dosage slag, fly ash, silica fume curing conditions age, compressive strength microstructure geopolymer-modified were studied. crystalline phase hydration products modified...
Pisha sandstone is a special pozzolanic mineral that has the potential to be developed as an environment-friendly engineering composite material in combination with solid waste. In this study, mechanical properties and microstructure of materials (PSCM) under different curing conditions were studied. The reaction mechanism PSCM also studied at modulus dosages modifiers, waste replacement levels. phases analyzed by XRD, TG/DTG, SEM/EDS techniques. results indicated high temperature could...