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全部话题 - 话题: concrete
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c**i
发帖数: 6973
1
来自主题: Military版 - Two Giant Concrete Pumps to Fukushima
I have tried my best, but still can not find anything in English that
distinguishes boom pumps made by Putzmeister AND Sany. In other words, the
two brands are not mentioned in the same Fukushima report, except one (see (
3) below). Tokyo Electric Power Co (TEPCO) has websites in Japanese or
English, neither of which mentions pumps at all (reportedly TEPCO Digest on
Mar 22 did mention a pump without mentioning the brand (title: "Concrete
Pump Car completed watering Unit 4 spent fuel pool (20:30p... 阅读全帖
c**i
发帖数: 6973
2
来自主题: Military版 - Two Giant Concrete Pumps to Fukushima
(1) 美派大型混凝土泵车助日冷却核反应堆. VOA Chinese, Apr 1, 2011.
http://www.voanews.com/chinese/news
/20010401-JAPAN-US-PUMPS-119101029.html
, which is translated from
US Sending World’s Largest Pump to Cool Japanese Nuclear Reactor. VOA, Apr
1, 2011.
http://blogs.voanews.com/breaking-news
/2011/04/01/us-sending-worlds-largest-pump-to-cool-japanese-nuclear-reactor/
My comment:
(a) The title is kind of misleading. It is not 美, though US government
might have helped/ coordinated.
(b) Summary of the news: A German... 阅读全帖
s*****u
发帖数: 371
3
湾区的房子,08年曾经交易过,当时做过foundation inspection,说在车库右边的墙
壁上有裂痕然后修复了
STRUCTURAL FAILURE: The perimeter foundation has a horizontal crack in it
that is approximately seven-foot in length and about a quarter of an inch in
width. The crack is located along the right side wall(facing the house) of
the garage at the main garage door opening. This crack is not the result of
settlement, but of steel corrosion (rust). The steel corrosion has caused
expansive forces to develop within the concrete, leading to a t... 阅读全帖
z*****a
发帖数: 3809
4
【 以下文字转载自 Military2 讨论区 】
发信人: zhubaba (zhubaba), 信区: Military2
标 题: China Concrete Pumper Gets Into Nuclear Effort
发信站: BBS 未名空间站 (Tue Mar 22 23:33:44 2011, 美东)
http://blogs.wsj.com/japanrealtime/2011/03/22/china-concrete-pu
gets-into-japan-nuclear-effort/?mod=google_news_blog
To cool quake-ravaged systems at the Fukushima Daiichi nuclear reactors,
Japanese authorities have funneled water in from the sea, dumped it from
helicopters, shot it from fire trucks and of late had success
reestablishi... 阅读全帖
z*****a
发帖数: 3809
5
http://blogs.wsj.com/japanrealtime/2011/03/22/china-concrete-pu
gets-into-japan-nuclear-effort/?mod=google_news_blog
To cool quake-ravaged systems at the Fukushima Daiichi nuclear reactors,
Japanese authorities have funneled water in from the sea, dumped it from
helicopters, shot it from fire trucks and of late had success
reestablishing pumps.
Now, they are reportedly bringing in a new weapon: A powerful Chinese-
made truck designed to shoot wet concrete several stories into the air.
A truck-mo... 阅读全帖
t*n
发帖数: 14458
6
三一V5

http://blogs.wsj.com/japanrealtime/2011/03/22/china-concrete-pu
gets-into-japan-nuclear-effort/?mod=google_news_blog
To cool quake-ravaged systems at the Fukushima Daiichi nuclear reactors,
Japanese authorities have funneled water in from the sea, dumped it from
helicopters, shot it from fire trucks and of late had success
reestablishing pumps.
Now, they are reportedly bringing in a new weapon: A powerful Chinese-
made truck designed to shoot wet concrete several stories into the air.
A tr... 阅读全帖
p********f
发帖数: 5148
7
来自主题: Living版 - 关于stamped concrete价格
头次在这个版发贴,各位多关照哈。
正在考虑做back patio, side walkway, 和front entryway (门外的). patio and
entryway 都做成stamped concrete. side walkway regular concrete.
面积 stamped concrete 649 SF, regular broomed concrete 184 SF.
找了两个公司。一个尚未开价,另一个开价为 stamped concrete $10/sf, regular
concrete $7/sf.
另外原有的砖铺patio和entryway都要remove. 合起来最低价只能砍到$7000.
我在美东。这个价钱如何?
k**l
发帖数: 2966
8
来自主题: Living版 - 在concrete patio 上建 deck
老房子了,那时候好像流行concrete patio, 时间长了裂出一条20feet,最宽近一寸的
缝,修补不如直接在上面建个wood deck
具体步骤和下面这个链接大同小异
http://www.calredwood.org/pdf/Projects/Deck+Over+Concrete.pdf
pic1: 建之前全景照片:自己没照过,只好拿房子装修前redfin上的存货来充数,一期
工程就是用deck覆盖放椅子的concrete patio
pic2: 每隔2‘铺一条2x4"枕木(sleeper/joist), 用便宜的wood shims fine tune
leveling (注意每次叠两片让木头表面水平);harbor freight 买的hammer drill
在水泥上打小孔
pic3: tapcon concrete screw, 把枕木钉死在concrete上;
c**i
发帖数: 6973
9
来自主题: Military版 - Two Giant Concrete Pumps to Fukushima
Thanks for the information. But Xinhua news and press release from the
Changsha, Hunan company all point to ONE boom pump, given free of charge to
Tokyo Electric Power.
Press release: Mission Started--Sany Concrete Pump Used at Fukushima Nuclear
Power Plant. Sany Group. Mar 29, 2011.
http://www.sanygroup.com/group
/en-us/media/25890_for_special_list_text_content.htm
("In order to minimize the radiation received by the pump operators, Sany
service engineers have developed a wireless remote contro... 阅读全帖
G*****m
发帖数: 5395
10
我原先的表面不水平,所以需要铺水平的话,深度不一样
你的水泥已经完全干了?没干的话直接加cement:sand mix
如果已经完全干透了,可以用concrete bond+ cement:sand mix
或者你去HD/lowes看看,有top resurfacer的,我买的resurfacer不用bond,setting
time 3hours
用concrete repair也可以,不过concrete repair一般是rapid set: 20m-1h
你动作得快点

还是没有完全看懂. :(
我原来铺了4inch的ready mix concrete.
现在是不是再上0.5inch的resurfacer就行了?
F**********e
发帖数: 1883
11
来自主题: Living版 - concrete flooring
今天看了一处房子,大体上还不错。就是它的 concrete flooring让我们有些concern。
concrete floor 倒是不难看,就是有几处很脏了,貌似不能清洁。
不知这里有没有对这个concrete floor有经验的人,能帮给我们解惑:
这几处貌似不能清洁的地方,有没有办法fix up,比如re-paint? 如果re-paint,我们
需要什么样
的涂料?
谢谢!
s****x
发帖数: 4701
12
考古了这个牛人大姐的这个帖子“超级省钱的DIY,用水泥做出漂亮的卵石小路”http://www.mitbbs.com/article_t/Texas/31581183.html
她用的是Setting Post Concrete Mix这种水泥,Lowes还有一种Pro Finish Concrete
Mix,这两种水泥有什么区别?介绍里都可以作patio。
两种水泥的连接
http://www.lowes.com/pd_10385-286-110180_0__?productId=3006075&
http://www.lowes.com/pd_234137-286-100668_0__?productId=3026899

发帖数: 1
13
请教, rustoleum epoxy shield concrete floor paint
和版上最近说的 epoxy coating, 有什么区别?
http://www.rustoleum.com/product-catalog/consumer-brands/epoxyshield/garage-concrete-floor-coatings/concrete-floor-paint
w*********r
发帖数: 42116
14
来自主题: Military版 - 用Concrete
用Concrete Block和steel frame。这样的房子越来越多了。尤其是在东西海岸,稍微
有点儿钱的人,新房子都会选择Concrete Block了。
d*******t
发帖数: 79
15
准备在院子的侧面铺concrete, 平时放垃圾箱, 铺concrete 时需不需要先铺wired
mesh(一种
金属网子,铺好以后网上浇水泥),谢谢大家!
g*****9
发帖数: 4125
16
If that is all you put on, there is not need for such a small piece, you can
also buy the concrete pad that is premade for AC outside unit.
If do want to use the mesh, it need to go in the middle of the concrete, not
铺 at the bottom, so need to be supported to the half height of your 水泥
thickness.
c*****m
发帖数: 22
17
看上一个房子,其他都好,但是hollow core block这点让我们有点犹豫。
*)basement foundation walls 看到pour concrete 和hollow core block两种材料,
觉得pour concrete的更好,但是这个房子是hollow core block的。
想问问大家,hollow core block的有什么坏处,另外对以后再卖房,房子的value有什
么影响。
*)还有一个walk up basement,不是walk out,是walk up.就是地面上有个门,然后几节
台阶下到地下室,感觉很鸡肋,而且感觉不安全。这个住进去以后会不会有什么麻烦?
大家了解的话能不能说说?谢谢啦~~
a********a
发帖数: 3082
18
做了3/4的closet cedar floor,楼上plywood subfloor的做完了,楼下的closet是
concrete floor,计划上面铺一层15/32"plywood sheet和边上的12mm laminated找平
,然后钉cedar plank
楼上的plywood sheet可以直接钉,楼下的是concrete,各位同修给支支招怎么固定
plywood sheet,预备了liquid nail construction adhesive,可是看了一堆youtube
都是用floor adhesive,想着是不是有防水功能
这个cedar因为在closet里边没有行走的摩擦,所以就用的是一般的cedar lining
plank比较薄,估计直接glue down不可行
c********a
发帖数: 35
19
【 以下文字转载自 SanFrancisco 讨论区 】
发信人: crabnebula (螃蟹星云), 信区: SanFrancisco
标 题: 求推荐东湾/tri-valley做Stamp concret的contractor
发信站: BBS 未名空间站 (Mon May 6 11:53:09 2013, 美东)
求推荐东湾/tri-valley做Stamp concret的contractor
y***j
发帖数: 11235
20
看名字选Pro Finish Concrete Mix,具体问小二
d**********0
发帖数: 13081
21
Setting Post 是搞一个水泥墩子。 而Pro Finish 是指有点弹性,延展性的。
你做的是薄的水泥片, 所以要用 Pro Finish.

Concrete
s****x
发帖数: 4701
22
pro finish要干貌似要2-3天,Setting Post Concrete Mix 30-60分钟就能干啦。
x*******9
发帖数: 2
23
有没有哪位达人知道怎么杀Concrete Driveway上的小虫子?
我家的Concrete Driveway有半天时间没太阳,因为是西雅图,老下雨。最近忽然发现
上面有很多很小(四分之一到半毫米)的灰黑色虫子,在不晒的时候,一拍就出来好多
(10个左右)。用杀蚂蚁的药喷了也不怎么管用。
在网上查了下好像是Springtails或Booklice。希望对房子没什么危害。
p********0
发帖数: 186
24
Hi,
I want to install engineered wood on concrete floor, contractor said I need
concrete sealer/moisture barrier between the engineered wood floor.
But a google search on lumber liquidor/lowes indicate I should be free of
sealer
Subfloors must be clean and free of dirt, curing compounds, sealers, drywall
mud, paint, wax, grease, urethane, or other materials that may affect the
integrity of the flooring material or adhesives used to install the flooring
.
p****o
发帖数: 96
25
来自主题: Living版 - concrete foundation外墙上的裂缝
房子是poured concrete foundation,地下室在地面上,concrete foundation的外墙
靠近basement的窗口的地方有一条裂缝从窗角一直延伸到地下,这个会有什么
结构上的严重问题吗?可以自己修补还是应该请专门的修补foundation wall的人来?
多谢!
G*****m
发帖数: 5395
26
some concrete 350lb
some sand mix (cement:sand) 350lb
some resurfacer 50-100lb
concrete bond

才85sqft要800lb材料啊?听起来好多啊。。。
铺什么?storage space吗?
G*****m
发帖数: 5395
27
对了,<2inch的最好用concrete bond

我买的resurfacer是0-0.5 in
0.5-2in的用cement:sand 1:2
>2 in 的用pre-mixed concrete (cement:sand:gravel 1:2:3) 或者用 cement sand
mix
那么在原来的基础上, 只需要加这个resurfacer就够了?
G*****m
发帖数: 5395
28
我也刚开始DIY,用的最最简单的concrete,复杂的下次来,互相share经验哈

你是用最简单的水泥吗?我还没有决定用什么呢。可供选择很多。水泥,水泥加小石子
,中间加红色paver,彩色水泥,stamped concrete,和全部paver。不知道那种好。fl
agstone的好像太贵了,打算排除。
j*******r
发帖数: 201
29
【 以下文字转载自 Living 讨论区 】
发信人: joykiller (I love MaJiang!), 信区: Living
标 题: Concrete Perimeter Foundation 可以不作检查吗?
发信站: BBS 未名空间站 (Thu Nov 8 02:00:10 2012, 美东)
看上一个87年的房子,地基是Concrete Perimeter Foundation的。 seller 没有提供
inspection report. agent说这种地基是大块水泥浇注的,不会有裂缝,所以可以不
做检查。 请问这样对吗? 多谢!
N******o
发帖数: 3053
30
来自主题: Running版 - 新人求教:concrete上的跑步
cushion好的就是Asics了,但是50刀预算太少了。Concrete上的感觉是完全不一样的,
条件限制没有办法,但是个人不建议在Concrete上all out,只能是放松跑,日积月累
你的心肺功能也是会有很大的飞跃。
b********n
发帖数: 906
31
来自主题: CivilEngineering版 - concrete petrographer
土木硕士,现在在一家公司做concrete petrographer,就是主要利用光学显微镜,电
子显微镜来检测concrete deterioration。想请教一下大家,如果回国工作的话,有没
有偏向于这个方面的职位。
谢谢!!
D*****I
发帖数: 987
32
一般的两种材料组合截面好象是根据杨氏模量的比值换算成另一种材料,相加.
但是圆形截面,我用SAP2000的SECTION DESIGNER比较,结果并不是这样的.
也就是说,我先让SAP2000算一个STEEL SHEEL(不填CONCRETE),然后算一个填满CONCRETE
的.
两者之差跟我按 E1/E2换算的合不上. SAP2000自己没有关于组合截面换算的解释.网
上也没有找到相关的文献.,是我孤陋寡闻吗?请高人指点.
a*******r
发帖数: 344
33
sap probably is right, check topics of confined concrete, mander model etc

CONCRETE
m*****g
发帖数: 138
34
Workers say a Red Sox T-shirt is buried as jinx in concrete of next Yankee
Stadium
by The Star-Ledger Continuous News Desk
Friday April 11, 2008, 7:03 AM
A Boston fan working on a concrete crew at the $1.3 billion Yankee Stadium
stadium covertly buried a Red Sox T-shirt under what will become the
visiting team's locker room to jinx the Yanks, two construction workers said
, according to a report in the New York Post.
"In August, a Red Sox T-shirt was poured in a slab in the visitor's
clubhouse.
z***t
发帖数: 10817
35
【 以下文字转载自 Stock 讨论区 】
发信人: zlltt (leo messi), 信区: Stock
标 题: Re: trump要steel wall不要concrete wall
发信站: BBS 未名空间站 (Fri Jan 4 14:48:42 2019, 美东)
slx大涨7%
2020竞选纲领会focus在美国国内基建
不过这事可能推迟到recession真来的时候 fed把rate降到0 trump政府4万亿刺激 财政
支出干
p******e
发帖数: 897
36
The #MuslimBan is personal for me — as it should be for every
soul on the face of planet earth. I will not respond with silence,
indifference or hatred; I will respond with love, resistance and power. TEN
CONCRETE ACTION ITEMS BELOW.
While I am neither Muslim, nor a citizen of the seven countries Trump has
barred from entering the United States, I am a human being. This is
unconstitutional, inhumane, shameful, appalling and offensive, not to
mention entirely baseless, senseless and c... 阅读全帖
z***t
发帖数: 10817
37
【 以下文字转载自 Stock 讨论区 】
发信人: zlltt (leo messi), 信区: Stock
标 题: Re: trump要steel wall不要concrete wall
发信站: BBS 未名空间站 (Fri Jan 4 14:48:42 2019, 美东)
slx大涨7%
2020竞选纲领会focus在美国国内基建
不过这事可能推迟到recession真来的时候 fed把rate降到0 trump政府4万亿刺激 财政
支出干
s***u
发帖数: 6959
38
【label求购】Apple Watch S1 38mm (Gold,Concrete) $215
s***u
发帖数: 6959
39
【label求购】Apple Watch S1 38mm (Gold,Concrete) $215
w****b
发帖数: 24
40
因美国经济不景气,响应奥巴马总统经济复兴计划号召,马里兰州Sunrise Concrete
Pump Rental Inc.提供泵车操作员3个月的专业培训计划,受训期将全额发放$15/小时的
工资,公司将给受训人员提供良好的学习环境和晋升空间,受训结业将高薪聘用,并提供
优厚的福利待遇,受训人员要求如下:
年纪在45岁以下的男性
有相关行业经验或者CDL商业驾照
通过Drug test
联系地址:1115-Elwin Road Fort Washington,
MD 20744
联系方式:301-938-1958
传真:301-567-0079
联系人:Ben
邮箱:w****[email protected]
h**********0
发帖数: 163
41
请教一下,好像听哪位前辈说过,Concrete Slab Foundation 的房子不能买。
有这一说吗?哪位大哥给解释一下。
多谢了!
m*******d
发帖数: 20
42
我想买个saw, 能切concrete paver, 也能切木头(比如说木板,木棍),有人说circular
saw就可以, 有人有实践经验吗?
R**R
发帖数: 3318
43
yes. I do.
一般的 circular saw, but two kind of blad. 看图:one is diamond blad for
concrete. 一般的 for 切木头.
Good luck.

circular
R**R
发帖数: 3318
44
来自主题: Living版 - concrete flooring
室内concrete floor?
z***y
发帖数: 473
45
来自主题: Living版 - solid hardwood floor on concrete
据我所知, 有三种方法, floating, plywood, and glue (如果hardwood的厚度小于1/2
"). 通常的说法是不建议直接粘在concrete上, 因此可以多考虑前两种方法. 但是
floating和plywood都比较贵, 除了地板, 还有其他材料和人工的价格, 总体上要综合
考虑.
d********d
发帖数: 497
46
Attached的车库的concrete地面上有Crack,这个Crack基本上横穿整个车库,不知道对
Foundation有没有影响?怎么修比较好?
谢谢!
j**d
发帖数: 293
47
我们刚买的房,地下室有foundation crack,下雨的时候有些进水,地面有些水。我们
地下室floor和墙都是concrete的,没有任何dry wall,只有ceiling是木的(一楼的
hardwood floor),这样长mold的概率大吗?
j**d
发帖数: 293
48
呵呵,我的愿意是dry wall + 潮湿的地下室会更容易导致mold的滋生,我的问题是如
果没有dry wall,只有concrete,我的地下室长霉的概率是不是小很多或者几乎为0?
c********h
发帖数: 7827
49
对, 不过我也见过concrete上长得,不过看上去应该比较容易除
b********h
发帖数: 7210
50
问题不是concrete 长不长mold,是地下室里别的东西长不长。
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