Compression behavior of historical brick masonry with mortar joint spalling strengthened with composite grouting and natural hemp fiber rope reinforcement

NBC:

Non-reinforced historical brick columns with mortar joint spalling

BCG:

Historical brick columns strengthened by the revamped horizontal mortar joints with modified composite sticky rice-lime mortar grouting

BCGR:

Historical brick columns strengthened by the revamped horizontal mortar joints with modified composite sticky rice-lime mortar grouting and hemp fiber rope reinforcement

f _m :

Masonry compressive strength

f ₁ :

Block compressive strength

f ₂ :

Mortar compressive strength

α, k ₁ :

The parameters related to masonry type

k ₂ :

The parameter related to f₂

f _2,0 :

The original mortar compressive strength inside the mortar joints

f _2,s :

The mortar compressive strength of the mortar grouting in the mortar joints

λ₁ :

The original mortar strength enhancement coefficient

λ₂ :

The grouting mortar strength reduction coefficient

d :

The thickness of the brick columns

b :

The total depth of the grouting

ρ :

The fiber rope reinforcement ratio

k ₆ :

The enhancement coefficient of fiber rope to masonry strength

f _m,c :

The calculated strength of masonry

f _{m, t} :

The experimental strength of masonry

σ _p, ε _p :

The upper limit stress and corresponding strain of the compressive elastic deformation

σ _max, ε _max :

The maximum stress and corresponding strain of the compressive process

σ _u, ε _u :

The stress and corresponding strain at which the maximum compressive deformation

l :

Crack length under successive load levels

l _m :

Total crack length under successive load levels

F :

Stress level under successive load levels

L :

Crack length ratio under successive load levels

ρ _s :

Crack size per unit area of the specimen

E :

Elastic modulus of the specimen

Authors and Affiliations

1. School of Architecture and Civil Engineering, Liaocheng University, Liaocheng, 252059, People’s Republic of China

   Shanwei Wang, Zhao Yi, Zhaobo Meng, Qingshuang Zhao, TengFei Zhao & Jie Jin

2. Yellow River Research Institute, Liaocheng University, Liaocheng, 252059, People’s Republic of China

   Shanwei Wang

3. School of Computer Science and Technology, Liaocheng University, Liaocheng, 252059, People’s Republic of China

   Aiping Han

Corresponding author

Correspondence to Zhaobo Meng.

Competing interests

The authors declare no competing interests.

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