Material Standard Test

Raw material test items include: Water content: with drying, moisture content determination of rapid determination of alcohol or alcohol. Raw material particle analysis: Determination of grading with the screening method to meet the requirements. Organic and sulphate content: suspected soil for determining whether soil is suitable for lime or cement stabilization. Effective Calcium and Magnesium Content: Determine the quality of lime by titration or calcium electrode method. Cement grade and final setting time: determine the quality of cement, is suitable for application.loss of ignition: to determine whether the application of fly ash Construction quality control The main items of control include water content, binder dosage, unconfined saturated compressive strength, mixing uniformity, compaction degree and deflection value.Double Steel Roller - Road Machinery Equipment Manufacturers - Doan Machinery

In order to accurately grasp the strength of the test section, seven days after the completion of construction sprinkler water conservation, the use of core drilling rig in the test section directly on the indoor drilling specimens without lateral compressive strength testing, core number per 50m Core three. In order to have a representative, generally located in the left and right different positions.

The management of synchronous gravel seal in the rural road maintenance supporting rubbing death. The implementation of standardized modern maintenance. Modern management methods to maintain a more standardized management within the industry, conservation of the industry is not static, with the development of technology, conservation means Update, maintenance content, changes in conservation requirements and maintenance management concepts vary. The current data in the road traffic management and road maintenance, transformation of old roads, etc. also play an irreplaceable role. The data collection and collation of the conservation industry is the foundation. Data analysis and prediction is the objective. Therefore, the conservation information must have five characteristics: accuracy, timeliness, purpose, comprehensiveness and economy. Only in this way, the analysis of forecast information can be better guidance, service maintenance management.

cold mix asphalt for maintenance patching patching cracked for large garage ground garage concrete patching material