Remember to add the ‘star symbol’! Every time there is a new article push, it will be prompted immediately.
.
conpd0523
Design experience of small radius curved beam bridge
The construction form of a small radius curved beam bridge has many similarities with a straight beam bridge, but due to its curved beam bridge, its structural stress characteristics are different, and it also has its own characteristics in structural treatment.
.
What is concrete slump and how to detect it?
Disclaimer: The pictures and texts of the article are from the network and are only for reference.
Their content does not mean that this official account agrees with their views or is responsible for their authenticity and accuracy.
The copyright belongs to the original author.
If the legitimate rights and interests of the original author are infringed or the original author does not want to be reprinted, please contact us to delete.
A small trick to improve the appearance quality of hydraulic concrete – Promotion of Jiangsu combined pull water stop screw
On March 14, 2016, the Jiangsu Provincial Department of Water Resources issued a notice on the issuance of the “Guiding Opinions on Promoting the Application of Combined Pull Water Stop Screws in Water Conservancy Construction Projects” (Su Shui Ji [2016] No.
4), which received positive responses from water administrative departments at all levels, legal persons of various engineering projects, and especially construction units of water conservancy projects.
.
Concrete decorations are all doing these things
After the smoke of World War II dissipated, people from various countries were busy rebuilding their homes.
In 1942, German chemist Chris Mitz, who immigrated to the United States, developed floor curing materials in the Jewish state of Utah.
Since 1947 in the United States, floor curing materials have been widely used in heavy industry workshops, logistics warehouses, supermarkets, parking lots, international airports, highways, bridges, dams, ports, and other fields.
.
[Testing Method] Testing Method for Residual Formaldehyde in Concrete Admixtures
Use distillation to remove residual formaldehyde from the sample.
In a pH 6 acetic acid ammonium acetate buffer solution, formaldehyde in the fraction reacts with acetylacetone under heating conditions to form a stable yellow complex.
After cooling, absorbance testing is performed at a wavelength of 412nm.
.
A deep research report on the mechanical effects, specification evolution, and adaptability to extreme geological environments of the
In the design and full lifecycle operation and maintenance of rigid (cement concrete) pavement engineering in modern high-level airports, the mechanical behavior of the joint system is always the decisive factor determining the overall structural performance.
As a quasi brittle material, cement concrete pavement panels are inevitably subjected to warping and shrinkage stresses caused by environmental temperature gradients and humidity changes during service, and must also withstand multi axle dynamic impact loads from large tonnage, high tire pressure aircraft.
In order to actively control and release these environmental stresses, the engineering community has established the basic paradigm of manually dividing pavement slabs by cutting or reserving transverse shrinkage joints, longitudinal shrinkage joints, construction joints, and expansion joints.
However, this artificially created physical fracture to alleviate internal stress inevitably damages the overall continuity of the pavement structure, making the joint area the weakest link for stress concentration, deflection mutation, and hydrological invasion.
.
The first Mediterranean style residence, don’t let your quality down!
In the era of unlimited price, the price game in the Hangzhou real estate market is becoming increasingly fierce.
.
Intensive land use, efficient efficiency improvement | Intensive and intelligent design of concrete mixing plants has become an industry
With the increasing scarcity of urban land resources and the continuous tightening of environmental supervision, traditional concrete mixing plants with large land areas and loose layouts are no longer able to meet the current industry development needs.
.
Imitation masonry composite mold – achieving integrated structural decoration
The imitation masonry combination mold launched by Weikai Zhongrun, through the synergistic effect of functional film materials and magnetic positioning decorative strips, achieves the effect of presenting brick like, stone like and other masonry order effects in one molding of concrete, bringing a new solution of low maintenance and high quality to public buildings and municipal engineering.
.