Terahertz Time-Domain Spectroscopy for Non-Contact Porosity Estimation and Hydration Assessment of Hardened Cement Paste.

Lidan Tian, Zhiguo Wang, Ya Chen, Wentao Zhang, Linhao Wang, Xiangyu Li

Abstract read

In one paragraph

Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Lidan TianCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Zhiguo WangCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Ya ChenCollege of Environment and Safety Engineering, North University of China, Taiyuan 030051, China.

Wentao ZhangCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Linhao WangCollege of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China.

Xiangyu LiCollege of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China.

Funding

National Natural Science Foundation of China 52178238

6 · The paper itself

Abstract

This study presents a systematic terahertz time-domain spectroscopy (THz-TDS) investigation of hardened cement paste, framed as a complex-optical measurement in which the real and imaginary parts of the response probe distinct microstructural attributes. Transmission-mode measurements were made on pastes with water-to-cement (w/c) ratios of 0.3, 0.4, and 0.5 at curing ages of 7, 14, 28, and 56 days. The effective refractive index, obtained from the time-domain pulse delay (7, 28, and 56 days, paired with mercury intrusion porosimetry), correlates strongly and linearly with porosity over nine porosity-paired conditions spanning 15.1-30.4% (pooled R

Indexed as

cement hydrationcementitious materialseffective medium theorymercury intrusion porosimetrynon-contact testingporosity estimationrefractive indexterahertz time-domain spectroscopy

Identifiers

PMID42451808

DOI10.3390/ma19132726

PMCPMC13362806

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.