Concrete is the most common man-made material on earth. 它经常用于恶劣的环境, leading to the rapid deterioration of poor-quality concrete mixes. im体育APP's concrete testing services ensure the concrete used is of consistently high quality and meets strict industry specifications and intended design life.
We offer a broad range of laboratory and on-site concrete and 综合测试 and inspection services to evaluate new materials, 评估现浇混凝土的状况, or demonstrate compliance with regulations and quality standards.
im体育APP operates comprehensively equipped accredited 材料测试实验室 specifically devoted to the testing and analyzing fresh and hardened concrete.
20多年来, our global laboratories have been entrusted with testing concrete mixes such as standard grades, 掺合料, 喷射混凝土, 自密实, and other high-performance modified mixes in some of the world's most iconic and complex concrete structures.
混凝土测试服务
从施工前审查, 混凝土配合比设计/评价, and concrete batch plant monitoring to fresh concrete testing on-site and hardened concrete testing in the laboratory, im体育APP support you at every stage of your project's construction.
We provide a wide range of concrete testing services in accordance with internationally recognized BS, EN, ASTM标准:
- 全套试验混合设施 具有普通硅酸盐水泥(OPC)经验, 快硬, 抗硫酸盐, 碎粒状高炉渣(GGBS), 粉煤灰, and silica fume mixes with accelerating admixtures, 制动外加剂, 减外加剂, 和强塑剂.
- 新拌混凝土和易性试验, 包括坍落度测试, 压实系数, 抽样, 流台试验, 空气含量试验, 密度测试, 和设定时间.
- 新混凝土性能:放血试验, 水溶性氯, 常规干料含量, 灰分含量, 二氧化硅含量, 毛细吸收, 密度, 收益率, 水泥含量, 水灰比分析, 抗压强度, 一致性增加, 保持一致性, 温度, pH值, 碱含量, 空气含量.
- 硬化混凝土性能 covering static modulus of elasticity and poission's ratio, 油缸, 核心, 以及立方体抗压强度试验, 吸水率/透水性/渗透性, 密度测试, 表面吸收, 抗弯强度, 抗拉劈裂强度, 蠕变, alkali-silica岩相, and SFRC flexural tensile strength 比例极限(LOP).
- 硬化混凝土耐久性 包括氯化物迁移(NT Build 492), 快速氯化物渗透性(RCPT), water penetration and Initial Surface Absorption (ISAT), 密度, 水吸收, 碱反应性(砂浆棒法), 渗透系数, 耐硫酸, 碳化深度和干燥收缩率.
- 硬化混凝土分析 覆盖水泥和骨料含量, 透水性, 骨料级配, 原始含水量, 水泥类型, apparent chloride coefficient of cementitious mixtures by bulk diffusion, Py-GC法测定硅烷含量, 骨料类型, 氯化物和硫酸盐含量
- 自密实混凝土试验 covering slump flow, V-funnel, L box, sieve segregation, J ring and Adiabatic tests
- 掺合料测试 包括减水测试, 抗压强度, 空气含量压力, 稠度增加或保持, 出血, 设置时间, 毛细吸收, 密度, pH值, 碱/二氧化硅/灰分/水含量.
混凝土温度控制与测试
All concretes generate heat as the cementitious materials hydrate. Most of this heat generation occurs in the first days after placement. For thin items such as pavements, heat dissipates almost as quickly as it is generated. For thicker concrete sections (mass concrete), heat dissipates more slowly than it is generated. The net result is that mass concrete can get hot. Management of these 温度s is necessary to prevent damage, 减少延迟, 并符合项目规范.
测试 via adiabatic methods determines the quantity of heat released from the concrete during its hardening process in an adiabatic condition at regular intervals from the just after casting of the specimen. The test is carried out using an adiabatic calorimeter which has been constructed to minimize the heat loss from the concrete sample. A sample of freshly mixed concrete is placed in a container which is then introduced into the adiabatic calorimeter and the internal 温度 of the hardening concrete is measured.
在大型混凝土构件中, the interior is considered to be hydrating in an essentially adiabatic process. Because of the low thermal conductivity of concrete, the heat of hydration from its interior is prevented from being released into the environment, 因此，损失的热量可以忽略不计. im体育APP Singapore and Malaysia have developed an adiabatic calorimeter that can be used to determine maximum concrete 温度s and 温度 differences for any concrete mix design.
Our experts have unrivaled experience in enacting design trial mix and quality control testing programs that ensure the 抗压强度 of concrete and durability criteria is maintained.
For more information about our concrete testing services, or to request a quote, im体育APP 今天.
“im体育APP has provided an excellent service for testing elements of concrete.”
哈立德·马苏德·汗
建筑工程承包.L.C
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