Month: July 2026

In order to strengthen the quality control of engineering construction in our city, standardize the production, testing, and delivery management of ready mixed concrete throughout the entire process, the Municipal Commission of Housing and Urban Rural Development has officially released a new version of the local engineering construction standard “Pre mixed Concrete Quality Control Standard” (DBJ50/T-038-2026).

The standard will be officially implemented on October 1, 2026, and the original DBJ50/T-038-2018 will be abolished simultaneously.

Embedment Plate

.

3D concrete printing (3DCP) has become one of the core directions of construction industrialization due to its advantages of template free, complex configuration free molding, and fine material utilization.

However, from prototype display to load-bearing structure application, material anisotropy and high mechanical performance variability have always been the core bottlenecks – there are huge differences in printing equipment, mix proportions, and process parameters around the world, and there is still no unified safety factor for structural design sub items.

If a single conservative value is taken directly in the most unfavorable direction, it will lead to larger component dimensions and an increase in hidden carbon; If control is relaxed, there will be no evidence to support structural risks.

Double Ended Ferrule

.

Industry iteration accelerates, technological innovation continues! In the current context of intensified fluctuations in raw materials, upgraded construction standards, and low-carbon cost reduction, the mix design, which is the core of concrete production, is undergoing a disruptive change.

Precast Lifting Clutch

.

1.

Steel Chamfer

The number of certified personnel does not meet the requirements of standardized management, and the laboratory director has not registered with the quality supervision station.

.

In the concrete industry, concrete with a strength grade of C60 or higher is generally referred to as high-strength concrete, while concrete with a strength grade of C100 or higher is referred to as ultra high strength concrete; Concrete with a pumping height exceeding 200m is called super high-rise pumped concrete.

Precast Lifting Clutch

Super high-rise pumped concrete with high strength, ultra-high strength, and pumping height greater than 200m, due to its low water cement ratio, requires a large amount of total cementitious material in a single cubic meter of concrete, resulting in high concrete viscosity.

Therefore, the pumping pressure is high and the pumping construction is difficult, bringing a series of technical challenges to the entire construction pouring process.

This article provides some insights and experiences on solving the viscosity of high-strength and ultra high strength concrete for the vast number of concrete professionals, in order to entertain readers.

.

My own level is limited.

PVC Chamfer

If there are any unclear expressions or inaccurate descriptions, I hope colleagues and experts can give me more guidance.

In this issue, I will discuss with you the key points of construction quality control from several aspects such as concrete construction, steel processing, interior construction, and exterior construction.

.

A total of 26 shield tunnel sections are planned for a certain project in Guangzhou Metro, with a total production volume of 40448 precast tunnel segments.

The main lining segments of the project have a unified specification: outer diameter of 6400mm, inner diameter of 5800mm, and solid thickness of 300mm; the ring width is divided into two standardized sizes, namely 1500mm and 1200mm.

In order to adapt to tunnel curve excavation construction and meet the practical needs of on-site posture correction, the tunnel lining is based on the standard segment ring configuration, and is assembled by combining multiple types of segments to adapt to different curvature radius curves of the line; The matching wedge-shaped ring adopts a double-sided wedge-shaped structure, and the overall wedge-shaped difference is set to 48mm.

Pfeifer VS Box

.

Cement, as the active ingredient of concrete material, directly affects the strength of concrete.

Erection Anchor

In concrete production, the higher the grade of cement, the higher the strength of the produced concrete.

There are also high requirements for the fineness of cement, which directly affects the crack resistance and frost resistance of concrete.

Therefore, strict control should be exercised in the selection and use of cement to ensure its adaptability and maintainability.

.

The bathroom at home is leaking, and the ceiling downstairs is peeling.

Many people’s first reaction is: Is concrete afraid of water? You can turn your head and look at the bridge piers in the river.

Cast In Plate

One after another, the concrete pillars are soaked in the water all year round, unable to avoid wind, waves, rising and falling tides, and sediment erosion.

It seems that they are not so delicate.

.

Title: Jinyu Subsidiary Bankrupts with 71.

Embedment Plate

44 Million Debt! Concrete boss: I don’t understand these 3 data, the next one is you.