How to define responsibility for quality problems in concrete

by

Once a concrete quality accident occurs, although often the disadvantaged concrete enterprises suffer losses.

The reason for this phenomenon is that most concrete companies have the phenomenon of advance payment.

If there are quality problems, regardless of whether the concrete company recognizes them or not, the construction unit will directly deduct money.

Secondly, the market competition is fierce, and concrete companies want to continue supplying concrete, fearing losing the market.

But when there is a concrete quality accident, it is also necessary to clarify the responsibility.

Spread Anchor

According to the provisions of “Ready mixed Concrete” (GB/T14902-2012), delivery inspection should be carried out, which is the boundary line for defining responsibility.

The specific principle of responsibility can refer to the following points and analyze specific issues on a case by case basis.

.

Precast concrete structure houses: the mainstream innovative solution for green construction

by

In the current context of building industrialization and the deep implementation of dual carbon goals, precast concrete structures (PC structures) have replaced traditional cast-in-place structures and become the mainstream choice for domestic housing construction projects.

PVC Chamfer

Different from the traditional mode of on-site formwork and cast-in-place pouring, it takes “factory prefabrication, on-site assembly, and node cast-in-place molding” as the core logic, completely reconstructs the construction process, and realizes the leapfrog transformation of construction engineering from “construction site construction” to “industrial manufacturing”.

It is the core carrier of green building and intelligent construction.

.

Frequent occurrence of concrete diseases in summer? By doing these three things well, the construction quality can be steadily implemented

by

More than 90% of concrete quality accidents in high temperature weather are caused by inadequate implementation of cooling, curing, and crack prevention work.

Swift Lift Void Former

High temperature itself is not a construction problem, standardized construction control under high temperature is the key to quality control.

The following are the three core control points:.

Quality Control Plan for the Whole Process of Slope Roof Concrete Construction (with a Focus on Preventing Cracking)

by

The core difference between sloping roof and horizontal floor concrete construction lies in the existence of slope slip stress on the slope surface, which makes the concrete prone to sliding, segregation, and settlement due to its own weight.

The surface layer loses water faster and shrinks unevenly, making it prone to quality problems such as slope cracks, honeycomb and rough surfaces, sanding, hollowing, and steel bar displacement; The horizontal floor slab is uniformly stressed, the concrete forming is stable, and it is not easy to slip.

Cast In Plate

In response to the above differences, special control measures will be implemented for the entire process of steel reinforcement binding, formwork erection, concrete transportation, formwork insertion, vibration, leveling, finishing, and curing.

The core goal is to strictly control the cracking of roof concrete, ensure the overall integrity and waterproof durability of the structure.

.

Durability damage assessment and repair reinforcement of ordinary concrete structures

by

The ordinary concrete structure discussed in this article refers to the concrete structure of general industrial and civil buildings.

This type of building structure has a large quantity and a wide range, but its durability often fails to meet the design and specification requirements due to factors such as low concrete strength values in design, lax control of concrete water cement ratio and protective layer thickness, insufficient construction and maintenance measures, and inadequate maintenance measures during use.

During the design service life, it exhibits durability damage such as steel corrosion, which affects the structural function.

Embedment Plate

With the end of large-scale new construction activities, it is expected that the assessment and repair of durability damage to concrete structures will be a noteworthy task in engineering renewal and renovation.

.

Concrete Purchase Price Index (MPPI) for June 2026

by

In June 2026, the average price of C30 concrete nationwide was 267.

83 yuan/ton, a decrease of 5.

83 yuan or 2.

13% compared to May’s 273.

65 yuan/ton, indicating an overall weak market operation.

This month, the trend of upstream cement and gravel raw materials has diverged, with cement supply shrinking and strong willingness of enterprises to stabilize prices.

However, the demand for gravel is weak and prices continue to fall, resulting in limited support for overall raw material costs.

At the same time, the national concrete production capacity utilization rate continues to decline, coupled with multiple negative factors impacting terminal demand, resulting in weak market transactions and overall downward pressure on prices.

On the demand side, the suspension of the middle and high school entrance exams, coupled with high temperatures and rainy weather in East and South China, have hindered construction progress.

Cast In Plate

In addition, the slow recovery of industry funds, insufficient new construction projects, and the continuous suppression of engineering demand due to adjustments in the real estate industry have further dragged down concrete terminal consumption.

.