美国水泥和混凝土外加剂需求将以每年6.4%的速度增长，并在2012年达到32亿美元。
预计所有主要产品都将强劲增长——化学，矿物和纤维外加剂——在2007年建设活动和混凝土需求较低的基础上。出于经济和环境原因，增长也将带动混凝土工业副产品的利用的增长。通过使用化学和纤维添加剂提高混凝土结构的耐用性和持久性也将得到更多的关注。2007年高速公路和街道是水泥和混凝土外加剂最大的销售市场，占到总销售额的三分之一。据预期，联邦运输项目基金仍将保持强劲，所以这一市场仍将是增长最快的市场。
化学外加剂仍将是最大的产品部分，占市场总价值的45％。对减水剂的巨大需求，尤其是自密实和高性能混凝土的关键成分——高效减水剂类的产品，将带来大的收益。
矿物外加剂将得到高于平均水平的收益，这也将是一个持续的长期趋势。废弃材料——尤其是粉煤灰——将越来越多的被用来代替混凝土中的波特兰水泥。高炉矿渣，由于受到国内供应制约的限制，预期其需求将有比较温和的增长。另外，由于这些材料作为外加剂将对环境产生积极的作用，即可作为循环材料来减少污染和能源消耗，又可减少水泥产品的使用，因此预期这些产品的需求会有所增长。
混凝土生产商逐渐接受纤维类产品加入混凝土将带动对纤维外加剂的强劲需求。收益将受益于不断增长的合成粗视纤维的应用，加入高剂量合成粗视纤维可以二次加固混凝土。改良混凝土功能的新产品销售量也将增加，如聚乙烯醇和纤维素纤维。
附英文：
New market report on US cement and concrete additives - Freedonia
Demand for cement and concrete additives in the US will grow 6.4 percent per year to $3.2 billion in 2012. Strong gains are expected for all major product types -- chemical, mineral and fiber additives -- as construction activity and concrete demand rebound from a low 2007 base. Advances will also be driven by rising utilization of industrial byproducts in concrete for economic and environmental reasons, as well as an increased focus on the production of durable and long-lasting concrete structures through the use of chemical and fiber additives. Highways and streets were the largest outlet for cement and concrete additives in 2007, consuming about one-third of total demand by value. This market will also grow the fastest, as it is expected that federal funding for transportation projects will remain strong through 2012. These and other trends, including company profiles and market share, are presented in Cement & Concrete Additives, a new study from The Freedonia Group, Inc., a Cleveland-based industry research firm.
Chemical additives will remain the largest product segment, comprising 45 percent of the total market in value terms. Gains will be led by strong demand for water reducers, especially high-range “superplasticizer” types, which are key components of self-consolidating and high performance concrete mixes.
Mineral additives will post above-average gains in demand, a continuation of long-term trends. Waste materials -- particularly coal fly ash -- will increasingly be used as a partial replacement for portland cement in concrete. Blast furnace slag is expected to see more moderate growth in demand, limited by domestic supply constraints. Additionally, demand will be boosted by the positive environmental profile of these additives, both as recycled materials and through their ability to reduce the pollution and energy consumption associated with cement production.
Strong gains in demand for fiber additives will be driven by the increased acceptance of these products among concrete producers. Gains will benefit from the rising use of synthetic macrofibers, which are added in high dosages to provide secondary reinforcement for concrete. New product offerings which impart improved functionality to concrete, such as polyvinyl alcohol and cellulose fibers, will also see increases in sales.
