2022年2月1日 · Herein, a series of cement/ polyacrylamide (PAM) composites is fabricated through the situ polymerization of acrylamide (AM) monomers during the early hydration stage of cement. In the designed composite, the polymer chemically interacts with cement hydration products and exhibits a randomly stretched distribution.

2024年6月28日 · To conquer this issue, we constructed an organic–inorganic network within the cement matrix by utilizing the synergy of in situ polymerization of monomers and cement hydration, which significantly enhances its flexural strength and toughness while maintaining a comparable compressive strength with ordinary Portland cement (OPC).

2023年8月1日 · This study investigates the impact of Mg(OH) 2 on the in-situ formation of fibre-like aragonite and the mechanical properties of the cement mortar by accelerated carbonation. The results showed that the addition of Mg(OH) 2 showed a weak effect on the compressive strength of carbonated samples, but it significantly improved the flexural ...

2020年10月30日 · In this paper, the hydration, structural build-up and strength development of cement pates with different accelerators were investigated. The growth of static yield stress was used to characterize the structural build-up of fresh cement paste with 1% nano silica.

2019年4月25日 · Calcium carbonate cements are a promising alternative for calcium phosphate cements. Due to the higher solubility of calcium carbonate compared to apatite, it is expected to have an improved biodegradation rate; a clear advantage for prospective biomedical applications in a clinical context.

Compounds in cement mainly are tricalcium silicate, dicalcium silicate, tricalcium aluminate, and tetracalcium alumino ferrite. Not only do these compounds control most of cement properties but also reacts with water to produce new materials (cement hydration) and consequently ...

2021年3月28日 · The present work analysed the hydration evolution, hydration products, workability, compressive strength, and MIP tests of cement mortars prepared by various calcium acetate solutions as the mixing liquid. The cement mortars prepared by 2% calcium acetate solution show higher and stronger peaks of C 3 S and C 3 A. The heat release of the cement ...

2025年2月24日 · To address this issue, this study explored the use of sodium silicate, hydrated lime, and defluorinating agents as composite modifiers to enhance the durability of cement-stabilized phosphogypsum.

Almost everyone interested in cement is also concerned to at least some degree with concrete strength. This ebook describes ten cement-related characteristics of concrete that can potentially cause strengths to be lower than expected.

2010年6月1日 · The combination of DEIPA and CaCl 2 enhanced the 1-day compressive strengths of the HA cement and slag blend by 14–19% (2.1–2.6 MPa), the LA cement and slag blend by 28–33% (2.8–3.1 MPa), and the LA cement and Class F …