PSI - Issue 79

Naweed Ahmad Rabani et al. / Procedia Structural Integrity 79 (2026) 124–137

127

Figure 2: Splitting tensile strength of concrete samples with different mix proportions at the 3rd, 7th, 28th, and 90th day. Liu et al. (2019)

Figure 1: Compressive strength of concrete samples with different mix proportions at the

Barite is an economical, non-toxic, and efficient substitute for lead in radiation shielding due to its high density and barium concentration. (Binici et al., 2014; Kilincarslan et al., 2006; Basyigit et al., 2003) Barite effectively blocks neutrons and gamma rays. Masoud et al. (2020) demonstrated that barite–based concrete mixes (AB50) show higher density and gamma-ray attenuation efficiency than those with hematite (AH50). Akkur et al. (2012) and Basyigit et al. (2003) highlighted its suitability for heavy concrete in radiation-sensitive applications. Mesbahi et al. (2013) found that while colemanite reduces the linear attenuation coefficient, pure barite concrete maintains superior shielding efficiency.

Figure 4: The experimental setup for the attenuation coefficient measurement of concrete blocks contains Barite Mesbahi et al.. (2013)

Figure 3: The measured attenuation curves for the concretes under study against the Neptun 10pc linac's 9 MV photon beam. Mesbahi et al. (2013)

Table 2: Effects of Barite on Concrete

Property

Effect of Barite

Citation

Compressive Strength

Decreases with higher barite amount in concrete; the reduction range is from 10% to 47% Decreases with higher barite percentage in concrete; the reduction range will be from 13.2% to 50%

(Mesbahi et al., 2013; Saidani et al., 2015; Badarloo et al., 2022; Ling & Poon, 2012) (Liu et al., 2019; Saidani et al., 2015; Badarloo et al., 2022)

Tensile Strength Elasticity Modulus

Decrease with higher barite content in concrete.

(Liu et al., 2019; Saidani et al., 2015)

Density

Increases also enhance radiation shielding properties.

(Masoud et al., 2020; Akkur et al., 2010; Basyigit et al., 2003) (Binici et al., 2014; Kilincarslan et al., 2006; Basyigit et al., 2003; Masoud et al., 2020) (KÖk et al., 2023; Kanagaraj et al., 2023; Luo et al., 2022; Sevinç et al., 2023; Demir et al., 2020)

Radiation Shielding Thermal Resistance Shrinkage

Effective against gamma rays and neutrons shielding.

Compressive strength decreases significantly at high temperatures (e.g., 34% at 300°C) Decreases compared to conventional aggregates Lower hardness and strength due to crystallographic defects.

(Liu et al., 2019; Saidani et al., 2015)

(Mansoori et al., 2023)

Brittleness and Hardness