Embeddable Piezoelectric Sensors for Strength Gain Monitoring of Cementitious Materials: The Influence of Coating Materials

Su, Yi; Han, Guangshuai; Kong, Zhihao; Nantung, Tommy; Lü, Na

doi:10.30919/es8d1114

Cited by 36 publications

(23 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the PZT is intrinsically fragile (Song et al, 2007), the PZT patch was protected by a layer of polyester. The details of the sensors' packaging, embedding, and the influence of the coating can be seen in the previous study (Su et al, 2019a(Su et al, , 2020. After the sensor's embedding, three batches of samples were moved to the chambers at 0°C, 20°C, and 40°C separately right after the casting.…”

Section: Constant Temperature Testmentioning

confidence: 99%

Mechanism for using piezoelectric sensor to monitor strength gain process of cementitious materials with the temperature effect

Han

Nantung

et al. 2020

Journal of Intelligent Material Systems and Structures

Self Cite

View full text Add to dashboard Cite

Recently, the piezoelectric based sensor coupled with electromechanical impedance (EMI) technique is gaining attention on monitoring the mechanical properties changes in cementitious materials. However, the EMI signals obtained from the sensing system are not only influenced by the development of inherent mechanical properties in the host structure but also affected by the variation of temperature. When implementing a piezoelectric based sensor, both the ambient temperature change and the heat release from newly casted concrete would influence the sensing accuracy. In order to eliminate the biases from temperature effect, the mechanisms of EMI technique for strength sensing were investigated. The experiment work was separated in two parts. The piezoelectric sensors were first used to monitor the strength gaining of the newly casted cementitious samples curing under constant temperature. A strength estimation system was developed based on the experiment results. Later, the temperature variation was induced to affect the sensing performance. A temperature compensation technique was proposed to eliminate the temperature effect. It has concluded that the proposed compensation method can improve the strength sensing accuracy. The new understanding should help to promote the practical applicable EMI sensing technique.

show abstract

Section: Constant Temperature Testmentioning

confidence: 99%

Mechanism for using piezoelectric sensor to monitor strength gain process of cementitious materials with the temperature effect

Han

Nantung

et al. 2020

Journal of Intelligent Material Systems and Structures

Self Cite

View full text Add to dashboard Cite

show abstract

“…Flexible sensors have tremendous adhibitions in various different fields of energy storage devices, health‐care monitoring system, motion signal collection, robotic control, etc 1–10 . The pressure sensor is an integral part of flexible sensors with the ability to transduce pressure into directly observable or recordable electrical signals, 11–15 such as current, capacitance, and resistance, which makes an important role to monitor human movements and physical conditions 16–20 . Piezoresistive pressure sensors can discovered the regular change of the devices when pressure is applied by forming more conductive pathways 21 .…”

Section: Introductionmentioning

confidence: 99%

High strength and anti‐freezing piezoresistive pressure sensor based on a composite gel

Tie

Mao

Zhang

et al. 2022

Polymers for Advanced Techs

View full text Add to dashboard Cite

Piezoresistive sensors constructed by functionalized elastic gel have received broad research by virtue of the visible advantages, such as low-cost, stability of signal collection, and excellent compress strain. Herein, a new method about improved in situ polymerization of pyrrole monomer coated on polyurethane (PU) sponge was developed, which endowed the sponge with high and homogeneous conductivity. Then, a

show abstract

“…Flexible electronics are an emerging research field of electronics by combining active electronic materials with flexible materials to obtain excellent flexibility and stretchability of devices, which have attracted intense interest in the fields of smart life, healthcare, and motion detection during the past decade. − Wearable piezoresistive sensors with features of lightweight and high compressibility are capable of realizing real-time and rapid monitoring of physical stimuli by emulating human skin, showing high potentials in practical demands of human–machine interfaces, soft robotics, biomedicines, and so forth. − Conductive percolation theory of conductive polymer composites has provided a theoretical basis for the development of high-performance piezoresistive sensors in recent years, mainly focusing on the innovation of new-type of conductive structures in piezoresistive sensors. The construction of the spongy structure of sensitive materials and the surface microstructure of sensitive layers are two important innovations for piezoresistive sensors. − The piezoresistive sensing mechanism mainly depends on a reversible evolution in conductive networks, that is, the variation of electrical resistance derived from the deformation to external stimuli.…”

Section: Introductionmentioning

confidence: 99%

Superelastic, Fatigue-Resistant, and Flame-Retardant Spongy Conductor for Human Motion Detection against a Harsh High-Temperature Condition

Liu

Wan

Zhu

et al. 2021

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

The construction of wearable piezoresistive sensors with high elasticity, large gauge factor, and excellent durability in a harsh high-temperature environment is highly desired yet challenging. Here, a lightweight, superelastic, and fatigue-resistant spongy conductor was fabricated via a sponge-constrained network assembly, during which highly conductive graphene and flame-retardant montmorillonite were alternatively deposited on a three-dimensional melamine scaffold. The as-obtained spongy conductor exhibited a highly deformation-tolerant conductivity up to 80% strain and excellent fatigue resistance of 10,000 compressive cycles at 70% strain. As a result, the spongy conductor can readily work as a piezoresistive sensor and exhibited a high gauge factor value of ∼2.3 in a strain range of 60–80% and excellent durability under 60% strain for 10,000 cycles without sacrificing its piezoresistive performance. Additionally, the piezoresistive sensor showed great thermal stability up to 250 °C for more than 7 days and sufficient flame-retardant performance for at least 20 s. This lightweight, superelastic, and flame-retardant spongy conductor reveals tremendous potential in human motion detection against a harsh high-temperature environment.

show abstract

Embeddable Piezoelectric Sensors for Strength Gain Monitoring of Cementitious Materials: The Influence of Coating Materials

Cited by 36 publications

References 0 publications

Mechanism for using piezoelectric sensor to monitor strength gain process of cementitious materials with the temperature effect

Mechanism for using piezoelectric sensor to monitor strength gain process of cementitious materials with the temperature effect

High strength and anti‐freezing piezoresistive pressure sensor based on a composite gel

Superelastic, Fatigue-Resistant, and Flame-Retardant Spongy Conductor for Human Motion Detection against a Harsh High-Temperature Condition

Contact Info

Product

Resources

About