Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, Traffic Engineering Testing, Henan Province is one qualification place since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, engineering testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of test qualification and testing laboratory room. Pozzolanic material varieties are many natural volcanic ash, tuff, pumice, zeolite rock, diatomaceous earth and diatoms stone; artificial are calcined coal gangue, shale burning, burning clay, cinder, slag and other siliceous . National standard "for cement Pozzolanic material" (GB / T47-2005) provides Pozzolanic material SO3 content shall not exceed 3%; pozzolan test must be qualified; pozzolan cement mixed with 30% of the mass of mixed materials Mortar 28d compressive strength of Portland cement and 65 mortar 28d compressive strength ratio of not less than 062. For artificial Pozzolanic materials, steel engineering testing, but also the provisions of its loss on ignition shall not exceed 10%. Henan malpractice Construction Engineering Testing Co., Ltd. is a professional testing company, quality engineering testing, qualification, Henan Province is one place since the first detection through examination of business. Business in the Pile qualification qualification, the qualification grade steel, a qualified indoor environment, building energy efficiency testing, subject testing, materials testing, curtain detection, detection of roads and bridges, air defense projects to detect a number of test qualification and testing laboratories. Non-active material in the cement mix regulate cement strength grade, saving of the cement clinker, also known as mixed filling material. Such hybrid material, texture are ground into a fine powder solid quartzite, limestone, sandstone; soft texture are clay, loess and the like. Also, who do not meet the technical requirements of granulated blast furnace slag, pozzolana and fly ash mixed material, can be used as non-active mixed material applications. For non-active blended material quality requirements mainly be of sufficient fineness, no or very little cement containing harmful impurities. Engineering Test _ _ steel works malpractice detected by detecting malpractice Construction Engineering Testing Co., Ltd. Henan. Engineering Test _ _ reinforced engineering testing detected malpractice is malpractice Henan Construction Engineering Testing Co., Ltd. (www.hnrsjc.cn) (www.rsgcjc.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page Phone or pictures on obtain the latest information, contact: Wang Wei.