Study on preparation of inorganic binder stabilized material with large dosage of phosphogypsum

Sun, Qiang; Tao, Liangjing; Li, Xin; Wang, Xu; Yao, Shuo; Li, Jinpeng; Ren, Qifang; Chen, Yuee; Xu, Chunshan; Wu, Zilong; Zhu, Yuelei; Ding, Yi; Oh, Won‐Chun

doi:10.1007/s43207-023-00299-0

J. Korean Ceram. Soc.

2023

DOI: 10.1007/s43207-023-00299-0

|View full text |Cite

Study on preparation of inorganic binder stabilized material with large dosage of phosphogypsum

Qiang Sun

Liangjing Tao²,

Xin Li³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

2024

Publication Types

Select...

Article3

Relationship

Self Cite0

Independent3

Authors

Journals

Cited by 3 publications

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Research on crystalline admixtures for low carbon buildings based on the self-healing properties of concrete

Ding,

Wu,

Huang

et al. 2023

Construction and Building Materials

View full text Add to dashboard Cite

Research on crystalline admixtures for low carbon buildings based on the self-healing properties of concrete

Ding,

Wu,

Huang

et al. 2023

Construction and Building Materials

View full text Add to dashboard Cite

Study on Expansion Rate of Steel Slag Cement-Stabilized Macadam Based on BP Neural Network

Wu,

Xu,

et al. 2024

Materials

View full text Add to dashboard Cite

The physicochemical properties of steel slag were investigated using SEM and IR, and it was found that free calcium oxide and free magnesium oxide in steel slag produce calcium hydroxide when in contact with water, leading to volume expansion. Thus, the expansion rate of steel slag itself was first investigated, and it was found that the volume expansion of steel slag was more obvious in seven days after water immersion. Then, the cement dosages of 5% and 6% of the steel slag expansion rate and cement-stabilized gravel volume changes between the intrinsic link were further explored after the study found that the cement bonding effect can be partially inhibited due to the volume of expansion caused by the steel slag, so it can be seen that increasing the dosage of cement can reduce the volume expansion of steel slag cement-stabilized gravel with the same dosage of steel slag. Finally, a prediction model of the expansion rate of steel slag cement-stabilized gravel based on the BP (back propagation) neural network was established, which was verified to be a reliable basis for predicting the expansion rate of steel slag cement-stabilized aggregates and improving the accuracy of the proportioning design.

show abstract

High-Volume Phosphogypsum Cement Stabilized Road Base: Preparation Methods and Strength Formation Mechanism

Zou,

He,

Xia

et al. 2024

Materials

View full text Add to dashboard Cite

This study investigated the potential for efficient and resourceful utilization of phosphogypsum (PG) through the preparation of a High-volume Phosphogypsum Cement Stabilized Road Base (HPG-CSSB). The investigation analyzed the unconfined compressive strength (UCS), water stability, strength formation mechanism, microstructure, and pollutant curing mechanism of HPG-CSSB by laser diffraction methods (LD), X-ray diffraction (XRD), fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and inductively coupled plasma-mass spectrometry (ICP-MS). The optimal mix ratio of HPG-CSSB was 4% cement, 1% CA2, 35% PG, and 60% graded crushed stone. The UCS reached 6.6 MPa, 9.3 MPa, and 11.3 MPa at 7, 28, and 60 d, respectively. The alkaline curing agent stimulated cement activity and accelerated the release of Ca2+ and SO42− from the PG. This formed many C-S-H gels and ettringite (AFt). The curing agent converted Ca2+ to C-(A)-S-H gels due to high volcanic ash activity. The diverse hydration products strengthened HPG-CSSB. The HPG-CSSB exhibits favorable water stability, demonstrating a mere 7.6% reduction in strength following 28 d of immersion. The C-S-H gel and AFt generated in the system can carry out ion exchange and adsorption precipitation with F− and PO43− in PG, achieving the curing effect of toxic and hazardous substances. HPG-CSSB meets the Class A standard for integrated wastewater discharge.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Study on preparation of inorganic binder stabilized material with large dosage of phosphogypsum

Cited by 3 publications

References 37 publications

Research on crystalline admixtures for low carbon buildings based on the self-healing properties of concrete

Research on crystalline admixtures for low carbon buildings based on the self-healing properties of concrete

Study on Expansion Rate of Steel Slag Cement-Stabilized Macadam Based on BP Neural Network

High-Volume Phosphogypsum Cement Stabilized Road Base: Preparation Methods and Strength Formation Mechanism

Contact Info

Product

Resources

About