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Engineer's notice of a supervisor This document is the engineer's notice of a supervisor. The contents are complete and can be downloaded -
Ordinary concrete mix proportion notice This information is the notice of mix proportion of ordinary concrete. The contents are complete and can be downloaded -
Notice of mix proportion of common concrete This information is a notice of mix proportion of ordinary concrete. The contents are complete and can be downloaded -
Supervision Rules for Mass Concrete Quality Control From the perspective of supervision, this paper puts forward the control points of the three stages of "before, during and after" in detail, and it is effective after several engineering practices. -
Common quality defects of commercial concrete and their prevention Abstract: Commercial concrete has been popularized for many years, but some common quality problems still bother us. The author talks about his own views on the production and construction practice for several years for reference and discussion of peers. -
Analysis and prevention of influencing concrete quality Abstract: Concrete is a widely used structural material at present. This paper mainly analyzes various factors affecting concrete quality from the perspective of concrete production, and puts forward reasonable and feasible suggestions and preventive measures to ensure the safety, durability, economy and rationality of concrete production. -
Common quality problems of concrete and prevention measures Phenomenon. Some parts of the concrete structure appear loose, less mortar, more stones, and voids between stones are similar to honeycombed holes. 1.2 Causes -
Concrete quality defect control of a project A project is an earthquake resistant underground structure with a three-level earthquake resistance and a frame structure. Concrete quality control is very important in construction engineering. In view of the factors that cause concrete quality defects, the control discussion should be carried out from the aspects of concrete composition materials, concrete mix proportion, concrete production process, etc. -
Technical disclosure of common problems of concrete quality The quality and technical performance of cement, sand, interface agent and plain concrete slurry must meet the design requirements and construction acceptance specifications, and there should be quality certification, factory certificate, test report, anti-counterfeiting signs and other data. -
Specification for quality management of ready mixed concrete This data is a atlas of regulations for quality management of ready mixed concrete, with detailed contents for reference. -
Prevention of common problems in concrete quality management (1) The quality responsibility system is not clear and implemented in place. The spirit of Several Opinions on Strictly Implementing the Highway Engineering Quality Supervision Responsibility System issued by the Ministry of Transport has not been implemented; Quality responsibility division does not cover all construction contents; The person responsible for the quality of key processes is not implemented; Poor implementation of quality responsibility rewards and punishments; Some personnel involved in the construction lack training, and their awareness of quality responsibility is weak. -
Concrete and mortar construction mix proportion notice This document is the concrete and mortar construction mix proportion notice. The contents are complete and can be downloaded -
Common faults of concrete quality and their prevention This data is about the common problem of concrete quality and its prevention. There is no water slurry on the concrete surface and there are gaps between aggregates, forming more or less holes, which are honeycomb in size and irregular in shape. The exposed stone depth is often ≥ 5mm;. The design is accurate and the content is detailed, which is worth downloading. -
Manual of common problems of concrete quality including drawings In the construction of concrete works, some common quality problems often occur, which affect the appearance quality and use safety of concrete structures. How to eliminate and reduce common quality problems to the maximum extent and ensure the internal and external quality of structural engineering is the common goal of all participants -
Analysis on key points of supervision notice writing The supervision engineer's notice (hereinafter referred to as "supervision notice") means that the supervision engineer, after inspecting the problems found by the contractor in the construction process, notifies the contractor in writing in the form of notice and requires it to rectify, and then reports to the supervision engineer for review after rectification. Article 5.4.11 of the Code for Construction Project Supervision stipulates that "quality defects in the construction process, -
Concrete quality inspection and evaluation The cement shall be provided with a factory certificate according to the factory, type, batch number and mark number. The certificate shall include the cement brand, factory mark, type, mark, ex factory date, batch number, certificate number, compressive strength, flexural strength, stability and other inspection data and inspection conclusions. Sampling and reinspection at the construction site shall be carried out according to the fact that every 200 tons of cement produced by the same manufacturer, of the same type and with the same grade is a batch -
Quality Management Manual of Commercial Concrete Qingdao CSCEC Fuxing Commercial Concrete Co., Ltd. was established on June 11, 2004, funded by Sun Fengbo, chairman of Dongying Huachen Commercial Concrete Mixing Station, and Zhang Qingnian, an entrepreneur in Jimo. It has independent legal personality and registered capital of 10 million yuan. The current total assets are 20 million yuan; The main equipment includes: two sets of HZS150 mixing plant; One concrete trailer pump; mix -
Mass concrete quality control Hailong Reservoir is a medium-sized reservoir mainly for flood control and also for water supply. The dam type is a concrete heavy arch dam. Since the completion of the project, no cracks have appeared through observation and water storage operation. Taking Hailong Reservoir as an example, this paper expounds the quality control of mass concrete (raw materials of concrete, strength quality control and temperature control measures). -
Concrete quality control standard GB50164 Concrete quality control standard GB50164 -
Talking about the common quality problems of concrete and its prevention measures During the construction of concrete works, some common quality problems often occur, which cannot be eradicated and may directly affect the safety of the structure and the improvement of the use function. Therefore, only prevention and control can be carried out during construction to eliminate common quality problems to the maximum extent and ensure project quality, which is urgently needed by project management personnel. This article focuses on the causes and prevention of common quality problems -
Preventive measures for common problems of concrete quality The rapid growth of China's national economy has driven the rapid and sustainable development of the construction industry. Concrete has become one of the most widely used building materials in the world today because of its wide range of materials, low price, high compressive strength, can be poured into various shapes, good fire resistance, resistance to weathering, and low maintenance costs. With the birth of commercial concrete, its construction is convenient and fast -
Prevention and treatment of common quality problems of commercial concrete Prevention of Common Quality Problems of Commercial Concrete -
Analysis of Common Concrete Quality Accidents During the construction of concrete works, some common quality problems often occur, which cannot be eradicated and can only be prevented during construction. The causes and prevention of common quality problems are discussed below. -
Prevention measures for common problems of concrete quality Carefully design, strictly control the concrete mix ratio, and regularly check to ensure accurate measurement, uniform concrete mixing and suitable slump; The tumbling barrel or chute shall be set when the concrete blanking height exceeds 2m: the pouring shall be blanking and vibrating in layers to prevent missing vibration: the formwork joints shall be tightly blocked -
Quality control of pumped concrete Abstract: Pumping concrete should not only improve the construction performance of concrete, but also reduce shrinkage, prevent cracks, improve impermeability and improve durability -
Supervision and management of ready mixed concrete quality [Abstract] This paper supervises the quality of ready mixed concrete in terms of fingerprint attendance of key personnel in ready mixed concrete enterprises, online supervision system, irregular supervision and inspection, laboratory management, site management, mathematical statistical analysis, and puts forward specific measures to ensure the quality of ready mixed concrete. -
Regulations on Punishment of Concrete Quality Management The toilets are 120 lower than the corresponding floors, and the stairs are 60 higher than the corresponding floors. After each concrete pouring, the hanging formwork shall be removed immediately and the wooden card shall be used to find the edges and corners and the high ground. -
Construction technology to ensure concrete quality Block B high-rise residential building in Beijing Jianxiang New Village, located in Huayanli, Chaoyang District, was developed by Beijing Huayuan Real Estate Co., Ltd. and designed by Beijing Institute of Architectural Design, Chinese Academy of Sciences. The project is a tower apartment, with a standard floor plane at 140 ° angle, eaves height of 101.7m, full cast-in-place reinforced concrete structure, raft foundation, bottom plate thickness of 950mm, and base elevation of - 8.0 -
Technical disclosure of common concrete quality problems Safety protection facilities such as scaffold boards and railings must be complete and reliable in the working place of concrete vibration personnel. The concrete shall be lowered slowly and only after the bucket stops stably. The phenomenon of the bucket colliding with the operators on the platform shall be avoided. -
Quality certificate of ready mixed (commercial) concrete Ready mixed (commercial) concrete is detailed for reference -
Prevention and treatment of common problems of concrete quality 4.1 Pitted surface 4.1.1 Phenomenon There are grout deficiency and many small pits and pockmarks on the local surface of the concrete, forming a rough surface, but there is no exposed reinforcement. 4.1.2 Causes: (1) The formwork surface is rough or the sundries such as cement slurry slag are not cleaned up, and the concrete surface is damaged during formwork removal; (2) The formwork is not watered or not wet enough -
Notice of a construction supervision engineer This document is the notice of a construction supervision engineer. The contents are complete and can be downloaded -
Notice of supervision engineer of a unit This document is a notice of supervision engineer of a unit, with complete contents, which can be downloaded -
Notice of supervision engineer for a construction This document is the notice of a construction supervision engineer. The contents are complete and can be downloaded
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one Supervision engineer notice -
two Concrete quality rectification notice -
three Winter construction supervision notice -
four Notice for Supervision Specification -
five Construction concrete quality supervision -
six Supervision of common problems of concrete quality -
seven Notice of concrete quality supervision -
eight Notice of concrete quality defects