Preparation and Properties of Cement-Based Repair Materials for Road

doi:10.16552/j.cnki.issn1001-1625.2026.0163

Abstract

Abstract:

To ensure the service life of modern roads and driving safety， fast repairing damaged roads with high-performance repair materials is an efficient and environmentally friendly approach. In this paper， Portland cement and sulfur-aluminate cement were combined to form a compound cementitious system. Recycled tire rubber powder （RP） and dispersible latex powder were added simultaneously， and graphene oxide was further introduced to prepare a nanomaterials/polymer/rubber ternary modified cement-based composites （NPRM）. The orthogonal optimization method was used to comprehensively and quantitatively analyze the various repair properties of NPRM. After conducting the analysis of variance， the optimal ratio of NPRM is determined. The flowability， final setting time， 28 d flexible/compressive strength ratio， 28 d flexural tensile bond strength， and 90 d drying shrinkage of NPRM with the optimal ratio are 194 mm， 115 min， 0.319， 5.35 MPa， and 93.57×10^-6， whose comprehensive repair performances are superior to those of traditional repair mortar. Moreover， the incorporation of RP can significantly reduce the impact and noise generated by vehicle loads， hereafter achieves energy absorption and sound absorption effect when use NPRM to repair deteriorated urban roads.

Key words: road repair, recycled tire rubber, polymer modified mortar, nano-enhancing, bond strength, shrinkage performance, sound absorption performance

CLC Number:

TU528

ZHANG Yibin, LUO Jianlin, SHANG Huaishuai, JING Yuan, LIU Chao. Preparation and Properties of Cement-Based Repair Materials for Road[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2026, 45(9): 3299-3316.

Figures/Tables 32

References 40

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Cement	Mass fraction/%
Cement	SiO₂	CaO	MgO	Al₂O₃	Fe₂O₃	R₂O	SO₃	Loss
OPC	24.99	51.42	3.71	8.26	4.03	1.73	2.51	3.35
SAC	18.33	41.97	5.34	16.63	1.00	0.78	14.97	0.98

Cement	Mass fraction/%
Cement	SiO₂	CaO	MgO	Al₂O₃	Fe₂O₃	R₂O	SO₃	Loss
OPC	24.99	51.42	3.71	8.26	4.03	1.73	2.51	3.35
SAC	18.33	41.97	5.34	16.63	1.00	0.78	14.97	0.98

Factor level	A	B	C
1	2	0	0
2	4	5	0.03
3	6	10	0.05

Factor level	A	B	C
1	2	0	0
2	4	5	0.03
3	6	10	0.05

No.	OPC	SAC	FA	QS	EVA	RP	GO	W	Sup
NPRM1	720	180	112.5	1 080	18	0	0	303.75	16.2
NPRM2	720	180	112.5	1 026	18	54	0.45	303.75	16.2
NPRM3	720	180	112.5	972	18	108	0.27	303.75	16.2
NPRM4	720	180	112.5	1 080	36	0	0.45	303.75	16.2
NPRM5	720	180	112.5	1 026	36	54	0.27	303.75	16.2
NPRM6	720	180	112.5	972	36	108	0	303.75	16.2
NPRM7	720	180	112.5	1 080	54	0	0.27	303.75	16.2
NPRM8	720	180	112.5	1 026	54	54	0	303.75	16.2
NPRM9	720	180	112.5	972	54	108	0.45	303.75	16.2