Results 131 to 140 of about 588,723 (351)

The Use of Fly Ash in Highway Construction, HR-1031, Progress Report, 1986 [PDF]

open access: yes, 1986
In 1982 the Iowa DOT allowed a successful bidder the option of submitting materials and proportions using fly ash to produce a portland cement concrete (PCC) paving mixture to meet a specified compressive strength. The contractor, Irving F.

core  

Concrete in architecture: Redefining form, space, function, and insights from bibliometric analysis

open access: yesStructural Concrete, EarlyView.
Abstract Concrete has become a cornerstone in architectural and engineering innovation, as it seamlessly integrates structural performance with artistic expression. Its evolution from ancient opus caementicium to contemporary ultra‐high‐performance concrete illustrates its adaptability to the change in technological, environmental, and design paradigms.
Mouhcine Benaicha   +2 more
wiley   +1 more source

Influence of clinker grinding-aids on the intrinsic characteristics of cements and on the behaviour of mortars

open access: yesMateriales de Construccion, 2003
In the production of portland cement, grinding aids are used to improve the grinding stage and reduce the energy required to achieve the required fineness.
L. Fernández Luco   +2 more
doaj   +1 more source

WOOD PRE-TREATMENT INFLUENCE ON THE HYDRATION OF PORTLAND CEMENT IN COMBINATION WITH SOME TROPICAL WOOD SPECIES [PDF]

open access: yes, 2014
The influence of three pre-treatment methods on the hydration characteristics of Portland cement in combination with three tropical hardwood species was investigated.
Ahmad SANUSI, Nusirat Aderinsola SADIKU
core  

Machine learning approach for the flexural strength of 3D‐printed fiber‐reinforced concrete based on the meta‐heuristic algorithm

open access: yesStructural Concrete, EarlyView.
Abstract The increasing demand for concrete in construction presents challenges such as pollution, high energy consumption, and complex structural requirements. Three‐dimensional printing (3DP) offers a promising solution by eliminating formwork, reducing waste, and enabling intricate geometries.
Nima Khodadadi   +5 more
wiley   +1 more source

Reaction of rat subcutaneous tissue to mineral trioxide aggregate and Portland cement: A secondary level biocompatibility test

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry, 2013
Objectives: This secondary-level animal study was conducted to assess and compare the subcutaneous tissue reaction to implantation of white mineral trioxide aggregate (MTA) and white Portland cement.
P Karanth   +3 more
doaj   +1 more source

Mineral Trioxide Aggregate Material Use in Endodontic Treatment: A Review of the Literature [PDF]

open access: yes, 2008
Objective The purpose of this paper was to review the composition, properties, biocompatibility, and the clinical results involving the use of mineral trioxide aggregate (MTA) materials in endodontic treatment.
Berzins, David W.   +3 more
core   +1 more source

Mechanical and electrical properties of magnetically aligned micro steel fiber‐reinforced self‐compacting concrete

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the impact of magnetic alignment of micro steel fibers (0.35%, 0.70%, and 1.05% contents) on the mechanical and electrical properties of fiber‐reinforced self‐compacting concrete. A simplified magnetic circuit was designed and built to align the fibers within the concrete matrix.
Mohamed M. Al Rifai   +2 more
wiley   +1 more source

Investigation on Strength and Pore Structure of Supersulfated Cement Paste

open access: yesMedžiagotyra, 2018
The compressive strength and pore microstructure of supersulfated cement (SSC) pastes with different kinds of gypsum, different treatments on phosphogypsum and different fineness, and ordinary Portland cement, slag Portland cement were investigated.
Shuhua LIU, Lu WANG
doaj   +1 more source

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