Construction engineering cement material testing method

There are many factors affecting the quality of cement and concrete materials on the construction site. Because it is in an open environment, it is closely related to the release of atmospheric space, such as temperature, humidity, precipitation, and other natural environmental factors. Inferior cement and concrete will have a greater impact on the construction quality of construction projects, and will also cause delays in construction progress, and in severe cases will lead to on-site construction safety accidents. In view of this, the detection methods and procedures should be strictly controlled, the mixing time and process of cement concrete should be controlled to avoid material diseases such as cracks caused by the external environment or excessive external force. Click this site kingsunconcreteadmixtures.com to get more articles about the construction industry.

Cement construction material inspection

Main inspection content

The focus is on cement strength testing. The strength is mainly determined by the mineral content of the cement, and the fineness of the clinker will also have a certain impact on the cement strength. Therefore, strengthening the strength test of cement materials can not only measure the cement material, infer the cement grade according to the test data, provide a standard for evaluating cement quality, but also provide a theoretical basis for the reasonable configuration of concrete. Kingsun construction chemicals are widely used to make concrete mixtures.

Detection method

The first one is test preparation. First of all, it is necessary to ensure that the accuracy settings of the testing equipment used to meet the specifications, such as molds, compression testing machines, etc., during the installation of the required instruments, in order to ensure that the measurement accuracy meets the requirements and improve the measurement accuracy, the installation should meet the operating specifications. Before the test starts, materials such as cement, standard sand, and water should be placed in the test room at least 24h in advance. In the initial test stage, the temperature in the room should be controlled to be consistent, and the data preparation and recording before the test should be done in time.

The second is the parameter design in the detection process. Strengthen the control of variables, focus on observing the changing state of the cement material with the temperature change, and record the time required for the cement setting process in detail and accurately. The internal environment of the laboratory increases by 10 ℃ and the cement material specimens are broken The flexural strength will be reduced by 5%, so the ambient temperature of the test space should be strictly controlled to ensure the best environment before the test.

The third is that the transportation process of cement materials at the construction site will also affect the results of material testing. For example, the original cement can be numbered, and the relevant internal recorders can accurately record the location, quantity, and storage time of the cement.